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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef16127fd84d2d4357f70d6b92029af254288e2c4116a158f7636cbe3440eb8. 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/926a0e4b-0492-4ea8-b7d1-db7ecd768e09.json and https://artists.proofprofile.net/proofs/artist/926a0e4b-0492-4ea8-b7d1-db7ecd768e09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Besos, Limón y Miel (Acústico) [En Vivo]
Besos, Limón y Miel (Acústico [En Vivo])
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee892af019a5d1b1198c1313b0f7b594fcb02e88172c26f2d6d56d94ea08d99. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USHM22102899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65390188d70b43825156ae5559561e397bf003ecd4caef962f4a0ad80eeda8f9. 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/USHM22268833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d43660e8712bcefd00aa842fc663023700716128142b55272f7e6684a9b323. 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/FR10S2447071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daa928e12129590638bb487a1cfbf1dbb5ed1fe94015a45dbab47a04604edf9. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FR96X2434056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a07a3f16261172edab17117493e30361d2c3a907a19b60cfb48d971adfa6d7. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRX452442207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a69575ae7cf49e57095387e2c4754b15e79a6c11965b9dd38d34278df68fc2. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DGA0P2338378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325a18214d420c0513e845ab8870fee7a41cf7451adfc1f8abf2d2f7ec6ee728. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FRX452442208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56d1863f38afae5baba5d1e668a7aab964162455468f36f65ba01083c13c05a. 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/FRX452442209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc429b026f11a6064e80ece4ea9921211b918c98055125310873bd0f7225b1e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX452442210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7daa928e12129590638bb487a1cfbf1dbb5ed1fe94015a45dbab47a04604edf9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR96X2434056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358cd419e60c0bdfccc946ec7ec900132998eebc5f4326ab31eab735e85ff57f. 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/FRX452442211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155543768691ac343e6da6f306e9e43cd5ccfd9aa07b068778cce53d133a20e8. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/FRX452442212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818da6afa9ce373f97f0e80747a0b83756c1de324b4c208207262856394da1d1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/ARIRA2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54ffc144d1e4577ea78bbe90d8bd0c860a25091ebf3a4350463476345fd53ec. 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/ARIRA2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f180a469fd1e3071f0215233f9c6a1c602b09fa68b8d6ac8111f34a848a80a0. 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/ARIRA2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca639e5dc1aea8f7e0cccd20778ab23bfcf394e063f8b722bb0b1b44d029ba0. 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/ARIRA2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c889b714b5865cb191f5653ccadfe1b2ca96e839aa1fbe69c9c4c787785574b. 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/ARIRA2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af8e6ec99a8f26bf1f9159de88ecc3de95fd3bb4188c6c42c021ee5b6cb6bd8. 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/ARUGR2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af8e6ec99a8f26bf1f9159de88ecc3de95fd3bb4188c6c42c021ee5b6cb6bd8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARUGR2200001.