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 0x93c878e0bc85832a2b348e47834a704cbf34477d5f2c990fa974d89ccce22ddf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd7a4bf0-2d69-4be8-9d71-8b7b95b9b5b7.json and https://artists.proofprofile.net/proofs/artist/fd7a4bf0-2d69-4be8-9d71-8b7b95b9b5b7.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 0x9f30328c4277cbaabe1f0125c38569d1cbc7d3a1243ce7067963c9a64c80c678. 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/QZWFG2439456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8d0c978daa51304ba05455002bf25f493b79b463bc3b5702dd2468bd50207b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZWFG2439441.
Tan Fea Y Tan Contenta (Feat. Jessica Del Rey)
Tan Fea Y Tan Contenta - Feat. Jessica Del Rey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdf0ec6d6f43ce29f982fc91ad17c4f483a974f267c645f218cd5677e529800. 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/QZWFG2439457.
Donde Esta La Fiesta (Feat. Carlos Contreras)
Moviendo La Cangu (Feat. Saeer Castellanos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c84795916f03bb80622e240c895009c732f342fafda67f8318c4ae90af64c86. 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/QZWFG2436284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2b675639d857cefce4da1be16366b57fbf4add9c6534493f5865ba75ea7d0b. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZWFG2436238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c68f8f48cc6994f7459de0d11d84f375e9b42b7cd3752e904edb9771b0e858. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFG2439381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778c6bc34a67e8f103057f554cae00466b3431e69b8d3ec2d0f4edf88ddc502e. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/QZWFG2436231.
La Botella En La Chompeta - Feat. Jonnah Ruiz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbfddb3bc24847f64a1e9938905d9a7069635ff495d1d1e68bbc3e3a2432bbc. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T01:58:27Z), 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/QZWFG2432944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x697dde2802c0648a295fbce880fd78603ea82df31c33620d481a3bf6d54e9a30. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZWFG2432945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03a37ce675820c4b0cf9ea5d8710637ae3a3650b76dc700fb01ad48268ff3e3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZWFG2432947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2890215e75cedcab0be671635319498ccda952e25ac94e7c18ad7f0a3b7f0d0. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZWFG2432949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2085c947a2ba6d354aa2d45914b1c6d13155660c6f5449b77a34cb96837481f9. 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/QZWFG2432951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d16585c582c696b3458537b1dbef3a8791fbfa222074004e1382954d8b91f2. 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/QZWFG2436168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc915ae4f97fd2e779dce36e47ef855775cb9fdea88219fd4ffacb23368f9d795. 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/QZWFG2466331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf80b2b34ab499a39871a51de6de18243e8b986194f5a4531941a55cf0138de. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZWFH2439714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6fbe249753bab9e52722350c75bb8a1ea3c8450aa2de128572fbe0c6f3d931. 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/QZWFH2439718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9554bd21b2c8b578c20b72f4de3aa183bbbf8e9085b5df8bf811b12dcd91d4. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZWFH2439720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b2158dd05f107eb6bf53351fd768b38c31cded7b2c978fffab53b639d426a8. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZZ762483594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a2f34c6cbca048315f3e56bfe9b4d868689cd801ee1cbe50b7ed77d8787f50. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZZ762483597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc1d3149493ab23f59f642481db2550cb2b1e1af91abf6fa389ca4ebf2453ea. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZHN92518129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95d73ae1562f47423e19910460e3d011e9db9ab49663aa189790694ac37299b. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZK6L2545593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d2cabae371a46ad917fc5882be8a5253908e7600f17d01660b455741001bd7. 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/QZNWQ2531528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba52d85f5cb3b6477ebed0f3579e19e9fd8189f260758db8e7ad26339d638b5e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZTBD2596802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x429a9bb7885652acc103d9fb00debec2afd23c9f1bfbb02ea6b1a079daf08f19. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZZ7R2555228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb55ead60248a48390d382d9635b9b9223dc42d627dfce9416c4463ea1712efb. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT6E82554328.