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 0xd284e125e20b933c1213a914b8ff48532a1576cf585a854cd2c7384a0422d194. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ec9f9872-df7d-42ad-8248-641f21f0fa79.json and https://artists.proofprofile.net/proofs/artist/ec9f9872-df7d-42ad-8248-641f21f0fa79.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 0x4a09ef25ecb4fdcbb439cce9a80fdcdc3bedfe382b0d3126f6c8119192625103. 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/QZTB92377306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbda4098061a89ea17a9a066338f79f543d3c474d844a3b2e80b9c3b2c6115c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZTBA2309518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf5e3d93ed95491b2dcdba57d61607430b16609c54d727f9745cdfcc49806e2. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:57Z), 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/QZWFR2352592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b102cdf2cd2a86bc676dc8dcfd46fcc7e649d473dc4fa4302d93bbd3d782a4. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZDA82462738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc392e5d208ec2e42857417175873c83acd8e035a822afa36d39aa795fc9f9161. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES92425055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4880848c6a223df4ba37f4eb6faeae9c78441d967281b67a9e85a67843140ee3. 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/QZTAU2455403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7041b767f244491a528b9ffe58f3bd3f6a355c44a14eb1030a592a75bd2b5c7b. 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/QZWFH2433945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7f292798c844cbf8b01ba2508488af4ebeedff55b69b6f512db3918850a1ed. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/QZWFH2433950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93e28cd41387802026ce21a7e1bba722bb6ba054d9074220f6128e7c66e638d. 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/QT3F32498016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32035f57b0c44ecff1b91cb1554668107960421c8465bc569b429e36127a824. 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/QZHN72509576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc3dd709fad5938883a37fb820b03447e8d8265cb2cfd934072e034ae5cd570. 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/QZK6J2560613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4f68c84c5cf9c110396e58aa6183995fbc5ea07ed9a0a618fc4e9498c75661. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:03:44Z), 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/QZK6J2560617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7824afed54e724df21b072d712653ad33919ba63c29fe7435370b92883da3fa. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZK6J2560619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0768134b8e8c30978ec79df9397aa698167c30c7aeb0fc990216fe2e8d3a0ef0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:02:58Z), 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/QZK6J2560620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578c69d2acce53f70139ba365d726110953da29e014cb230859327fbfb0c41a9. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZK6J2560623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa96885ace6871d056306b1c102313f756bceecc6cecbd9fac667f9c6263caaa. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:19:05Z), 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/QZRP52535647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f40583461b8920219fb8b7d3a7d5d038145d98d89e41cb2e8d643c25fbd956d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:20:41Z), 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/QZRP52535660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93ea4cd516a40d04491ef2bcd7fe1b6e9153cea0eb68f66c854905f03dc7a8e. 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/QZTBD2539289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1f0a7d7112cfe3c4b9d001455ab98e3ca3145ecf766782c0471c2806b601de. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWFP2534760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44facd526da1de1799c39afba01f6491df98747d4a0f69b75f62f860a8b111cd. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:40:27Z), 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/QZWFP2594914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd65a47d8cbe2001d14c4509736c3f073d70b238f3d45a84c60d20b2aed3f1f9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZWFP2594915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b892a2112f5cc40a43ab252abec6d3c5485c7fe6cae6b85c0778f6709ecb5f0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZWFP2594916.
Shabbos Nachamu Leil Shishi @ Camp Sulam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074d068458cf0062f4581b813f04266711455a9337f07dc44f62efdc7b3e4d6e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:25:00Z), 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/QZZ7X2550054.