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 0x805a641b9baeb3d7645526e89862431744c7dec7cf32fc09c2c295274f6d99de. Chain 2 (Bitcoin): anchored in block 954004 (2026-06-16T21:01:04Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/32a2aeb2-c489-4814-bb28-c3f4548090ea.json and https://artists.proofprofile.net/proofs/artist/32a2aeb2-c489-4814-bb28-c3f4548090ea.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 0xca13a338c148ae1a2265eea08ef46f6fd0dea05fa958169a3f443b07e69b16c6. 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/SE6XX2113520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a9f241005fe3dab87e9d1b32f192dbbb8c6e381430b5eae95c406d9e564b2c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SE6XX2113521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703de722ed281db87ec69fb2e98368fea15b8c3b573926f0e03d3ec804d958ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE6XX2113523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76a3d14643a00c21b664dffa69c27304ac04b12ea58e7b21cb67fc96364e1f1. 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/SE6XX2113526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126c5d2e438e164a2d6d0d0922a6fcb75504b239dff19f764db2c18e04aacde0. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:10:25Z), 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/SE6XX2113519.
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 0xd81cf5eebd2c6215515cc4340fde2f4cf14b31bed0a80b5266dd3efdf777b274. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SE6XX2113522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0fb7bb5eb995eb30b695ebd3b6c9c474e569ee9b3f5d989bb74984a7db3a20. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/SE6XX2113524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e28f3a9b40613ef3cce5957be12da4801f83a0c7077a028119ff89898507a67. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE6XX2113525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fd4453667305d92d09bc3f5ecb4c571b48002c8d02835f5f22e4f56bc51bf9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM82237822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9017f96fb3764643a7e8149641dd8853f047398c7d053a061a4f7a626be5f33. 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/USHM22393324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f7a6a6ce951fc8844b79f7dec4e9909807407ce537aef357a070fe1739ab85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ5AB2347918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5466a15dd1b5354a360c5589270adc85d268d7e91a7b145d14de1f4d5e983b5b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM22294763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f6c0c69abb8be6b2674e0cf8fad629e6cc58e8053ee0cc7d6d9e71a1f497a4. 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/SE6HN2474964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8754ea3834632184f57ae9fc857412664109b07abf78ab31b6a9a3e4de1372b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/SE6QE2375878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e664ffe394b71dc01064b7cf4fb6162bff9bfc36d9ae0fc095059937b030591. 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/SE6HN2474965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0d6791de45cfedd42b8be7369a4b2dadcded7696af4ac1286f3705b52c44214. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEY472478997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2692cbb9aab3a8f7ec83b309a81d9e02da8c7a66428b159cacbb264c6caeae34. 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/QZNJZ2419075.
Nada Es Sencillo ¿Por Qué Todo Es Tan Raro?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834a8f3eb21b924a9a62ed5623b513e39f5f16d436507c030688b6cee19aafdb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZW9K2289081.