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 0x216d5150cb7b228ee2b2d8336d0d53db52483e92d6ef6883d3ccdb7c4c72dc03. 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/079bef01-b6b5-4a87-b58b-a0460346bcdc.json and https://artists.proofprofile.net/proofs/artist/079bef01-b6b5-4a87-b58b-a0460346bcdc.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 0xbd42c3f89466b493613f6984fc025b182f9e06c93310e826073300c65b2f2287. 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/FR6V80687834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2c9396b1466d858c8b924c4efe3a5c50fcc4b6a5bc7b42486c4abdd4604fc5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:22:40Z), 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/FR6V80244584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea73c808fdcc4e6f7f6f2f0dc285eeb48c2cad599760495c23ab202b993f4e7. 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/FR6V80244586.
Buenas Canciones Peores Intenciones (Editado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7cf067f3a757366d3805d34b378de68c905682cc08cff8e2e3c01c7d176ecb. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:43Z), 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/FR6V80244594.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe839b70ca8f098ec7cb58a6c3b12d11966ca21960a12e684d9b831e7cf390a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SE6QE2159228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6d86f56d291c4076128b7d56193b172924c45cd1f31bb14215c4987ad7f8df. 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/SE6QE2159237.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703df45f30d91f225e1536768b026c185790b7bd87c6869204217a627149b680. 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/SE6QE2222746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96425d3ef3985e9ce4895696f03ba919831ab5c534224201132e70a920cad34a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:58:39Z), 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/SE6QE2222747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3603c0bd45366d151544550146feee2e4f9cef751f435b9b54aa636fc8d764f0. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/SE6QE2222751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa403fa24f1666e7173deb0a4ac8fa184fdff969f063041ced8cea5cb691819e6. 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/SE6QE2222752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e643243c65819281d97823502992159776c4fb495321a76502fd5d15e99fe3f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/CAHQJ2267790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b3a23923f8c90cb0c402f0be3ac26a8ec651f47457a837808eae1c15c7a400. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:11:29Z), 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/CAHQJ2277760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ffa96703272ed5757a3675568ad4841dffa35178c98839e270136e2c364d18. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/ES64E2303437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605e93078865bda86aa0d0fe0af8f9e39f6b4112201a742368685e9e63363986. 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/ES64E2323147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037ee745255c50b2eb8736f95574433c85c3d936402e5261256e00862dea455. 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/ES31E2307194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a30741133d8f6373a23dbe1951e796f36317c719b6eeaf544751e1b481d1518. 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/ES31E2408166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eccdbee5f50ef7a380d7c0a6febfb2c9da02567fbff5c5ec0199e99746519bf. 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/ES31E2504038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037ee745255c50b2eb8736f95574433c85c3d936402e5261256e00862dea455. 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/ES31E2307194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e643243c65819281d97823502992159776c4fb495321a76502fd5d15e99fe3f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:23:00Z), 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/CAHQJ2267790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605e93078865bda86aa0d0fe0af8f9e39f6b4112201a742368685e9e63363986. 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/ES64E2323147.