1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9fa6dc05e4a449d53fe2dbf0ae5d04d0ec2759c4f61cd4cdd93788794559ad. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61f4fb84-fc31-446a-81db-5ace7a071a36.json and https://artists.proofprofile.net/proofs/artist/61f4fb84-fc31-446a-81db-5ace7a071a36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75055b0a32b7094a7fdae3aa37224487eb9f0e0229fb7f2660fb267faac713ea. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82189295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a89368762ffddef72cf63aeb6326afc0bfb09429f6b74e0ef35a4352e69bd7. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82189296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6aa2c4486b489fae1e25534b5855a62b27727e82bfa3f5335bae2227207fbb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82189297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e2ef4f1d93fad60a2eee90fc3301dd2af66e521eecd081af8faf9ec93322240. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82192069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1d018ffa89a61d3bc3333d69ecfce79aee40d400ce8bc0507b800e085be8d3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92126180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed347bd6c189b7b622af0d5623ad7265111c1b5349ec9152f39b5ef88dd3afc7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92128427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed347bd6c189b7b622af0d5623ad7265111c1b5349ec9152f39b5ef88dd3afc7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92128427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5c0dbec5862ada5e2c40e5cfea04b4925fe23e45b4c74040bb699c923d6665. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN42108533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c82a6d92a2385fc9ae431f0631a489d5ae3cf4848dd6cf387c39dcfacc3463. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2173275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c82a6d92a2385fc9ae431f0631a489d5ae3cf4848dd6cf387c39dcfacc3463. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNA2173275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0802501e4206276877418153c4a11a912786bb96bb202feb97faa34934dfb90. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2138380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad2e693f637463a096bee9fa101ee9be702996abedef2a423529a645eb8a939. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2164034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad2e693f637463a096bee9fa101ee9be702996abedef2a423529a645eb8a939. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2164034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d33932f5e4ec7f0c848a011919c0faa0446147442e02f4c8be756f8415d6bc6. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:25:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWX2112060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251481e3120b08af75e818fe03f4ab9d7b748c991b8a62fef977969444ab6395. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWZ2157710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1090924bd93e7abbc7953ca301e00403b6fb1fa205896c8e83716517d9a49f01. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42111627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3888a787b3ee923715ecd44f80e013d3fe6f75732a1b966ecc866e8a3cf82be3. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2229838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3888a787b3ee923715ecd44f80e013d3fe6f75732a1b966ecc866e8a3cf82be3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2229838.
Manso Como Paloma, Astuto Como Serpiente
Manso como paloma, astuto como serpiente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd190f2c358647ccf13f5b03859e1db64ad6660942a0127e7209b00674ceba488. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72289131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd190f2c358647ccf13f5b03859e1db64ad6660942a0127e7209b00674ceba488. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72289131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60018e739fe32e6ba26508d852fdf0ab462f820cd77f7384b5897675b0726779. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2237572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ef4fca79b7248c9f25f5422572ebe37d8c0cd6dd753ced3ec3ee6d28af3ded. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2266207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf71a13fce80088e0b70212045216e2365756b4e7b60fbc67e4a7548ec4fb0d6. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2201477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf71a13fce80088e0b70212045216e2365756b4e7b60fbc67e4a7548ec4fb0d6. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBB2201477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb53ef45c30179b755e0bcdf989541eed181020ce760577f3622d630f7266cfd. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ62342037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa93f794364bd8a62465e0d34d4d1108a7666110416825936649c9bccaa26425. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82399508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa93f794364bd8a62465e0d34d4d1108a7666110416825936649c9bccaa26425. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82399508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbe2cc5e18498e78c80d624f40af618d72243eabfee5266a76a182cd4ca5109. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2338225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c9a4654b09fa63a905dd01b70a9f6b2e1e835a96bca32afe24680f1ff852a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2382848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1c9a4654b09fa63a905dd01b70a9f6b2e1e835a96bca32afe24680f1ff852a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2382848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70efd278b6cdf10589142cb9472f4ecc8624a984a8c6452d8cc7ee74979fb0c7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82352105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf97b1de46f49b15beb65f1d2fdae96ebf52486859877e035fd8928d9077241. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFQ2382148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72a349c7e262666e14be00302a616e4dd7f7a96bbeb757609197372d1e607bd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2473138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1921f5b08d9c8bc05dd16139c6ac26386284070e36d64ca7942a41bb0eda386f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2497588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1921f5b08d9c8bc05dd16139c6ac26386284070e36d64ca7942a41bb0eda386f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEN2497588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b91bb4aa6c5b4a4c39e1fdf77ceea5c6cbaab31a41f0b1db44f03a12ac59cb. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2472528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b91bb4aa6c5b4a4c39e1fdf77ceea5c6cbaab31a41f0b1db44f03a12ac59cb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLR2472528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb081cfd0fdce543c4a6f940af8ca5debd2a6ea2aa9c789a72bc72ae9337f0bfb. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42432901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb081cfd0fdce543c4a6f940af8ca5debd2a6ea2aa9c789a72bc72ae9337f0bfb. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42432901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbf1b5084425988c450b5ae1e8ff1c01791858a6134daf6ba5a0b151e7d18a9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7L2489421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbf1b5084425988c450b5ae1e8ff1c01791858a6134daf6ba5a0b151e7d18a9. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7L2489421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce2b856f7900b66b49cd4c55b0e15df3e758dac7a433229508793c7f3cbaff5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:00:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f72b19b22d3146b1fcb4635ee607d08106a9c3805ce4501af789732699523c2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1658be85780de7980be4ec57f337c10eca6e6f86466f5adaa83d0d8e188c0df4. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1de8ebc125e279aaf473dc4f07b6858ce00e9bf3a0ae12ed73db854879056e3. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31cd63f7b4b7784fa97a9f45c8b2112f565b30eef6419c8489a98285aa1fbad. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954636ca5bd388d394ed8c51c9825e296b6a126ef2e1d2e3d80c46c9a9a5c789. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1c71fbae470359eddb2ec2b28a54cc8fcce5c3cecdd99032900ef124a90e34. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3563d6b822613adc185a9c68fdec0c0257d8215d5665c8c2f72db62c39dbadb1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYY2531216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f06492c2b98216a9bb25e237d1140a429d8e7936458a7dc600529d254fc322. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82592244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1117f4e6ab7c50d1d1bb7428f49598e2f540d4c7a54b4449b035463d72aacc22. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82599270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca973e856c7eed6221e4c2dda9d94076fdf1be7bd4d1d186bc4db63266cda0d3. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2549440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76754314f69437a230f456ca59f4e1389f621a53fc5164c9de531a834dd29da8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:07:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2565053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1cc193ebbc36b7b4d2b7c202a98054e94125b5df2a14b5e471008a8f2d32f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72538414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee1cc193ebbc36b7b4d2b7c202a98054e94125b5df2a14b5e471008a8f2d32f0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB72538414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5c253440f346fc92e70b868d0d34d18353a186328808ca10a114442978ee7e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2315864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf108e82f9d2838e0160a087c2fbb5ec340900343eabe294a07a26e8ec087ab16. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2348576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c4b45d3e702ea8d87573935586c0bb0ed9e221c45470ee3ed0459fe3995edf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2369523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aaef1df9a20bb189dce07af68b1c7d9a765383bf6c0ac218dd5823adfe498e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9M2236517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd630781f5be02fd782290a855d4cefde9c2fd498a9d63115470edbc7adc2af. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2394720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e7a19a6163f0942ab8339e58f68e2fb0ae21760d7250de801bbd9ce475d1ef. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2402907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9246d4acc53b791ee4115d29638b28de67093786a0f875cdfdae1523904a11d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJW2315346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4097d9201a99a879ccaf61045acbca214d568e515cfd06268368b9df179dea. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2314799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df282aaef8f4395aa75d981eb32d095b1af152deb0e2b431a57b606ac8f4d61. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2330611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b8f3eab3f293f4b310727c5ce483c70cd070e29be5bdc3a8b9c5485e5a2c24. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2311352.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch