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 0x72b711a9496fc9a9649205eaee55ac605bb1ce46e8d4f6715d7e0691ed5cbb47. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e12b4c7-48e8-449d-a4e6-736fc294f32b.json and https://artists.proofprofile.net/proofs/artist/7e12b4c7-48e8-449d-a4e6-736fc294f32b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Latin Jazz: The Absolute Best Laid Back Songs to Decompress and Reflect
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 0x7f864aaca14a5963a8ae56fd1652a2594d5bfd2c444746481a70aacc485da7ed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES8070620389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d982957e040f9bc14c8432a5560426dabbd07687c1bdd47c21858f70c2fae5c. 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/ES8070620390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebda508294a1d2d5da618c191a24a285ad09cbdf321d149d2fbed41ec3e444fb. 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/ES8070620392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0cd26255d35f1cf9d3b507725f1f219e579cf492b8a21d12b8595a87ee2394. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ES8070620393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5854cc34b1991bdf181f0f6e592160857e811785eda86076a0b06e4bcaa3b663. 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/ES8070620396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7e16cd124939e408038d44da2ef02401f6fc52ad4ac0ee014d49fd21080ed6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF020901763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41887683c9cca127cc0b8443cfac01691539b589cb178939f0aba2153f473d55. 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/ARF020901764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537274bfe3c17d878832c977ad819ce13be2855317fbf2f982b2b7aaf5518a9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF020901766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09a6467eb18c7e0c9a5b7200af07b5dc80077eaa440652cd086be7d6a07f5d50. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF020901767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72458c730c0da0e72ad247514a26ad36a50c0865c0f171426fc257edf3952013. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF020901768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb6fbc52f3e5b03e28a513bb8a83ae6fb93430cb19c985077b0cb150afbaa10. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF020901769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a37306c9da29646c90859af0ea2155eff5e6e99516ca2bb815508d7972027d1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF020901770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e57ad50ad3cccbd36ef8045e4f6313fb13fc3eba60865b8f3f9bb53f20e3d86. 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/ARF020901771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889f13ed868c0a7514c5ece9ee944a36debbfb4995ca7b1fab222a55f761c104. 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/ARF020901772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5833caf4f0879a7fe13d82851152de25a706325f9e11f3fb2610d71ffffe986b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF020901774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b4a7ffb9b4f4a145c27a3070624cc9db597bf8ea9911b9b188134dc0ae8d13. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF099400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae9e4f151cab97c23975191b9e6c7727054d2c298d26197f1372f63589581a7. 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/ARF099400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc866f0ada4d37ce2a54a8709347538c764a1745d856f58672e558dc63a921cc. 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/ARF099400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f35de66995c1b78bb0a723fc01a38c2e8cd62adcf468746f55683f7e5b00d36. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF099400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fab6ade97ea9866ecaca59ba69ed4085b579d0272985c89ffcf7d9db8ecabb2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF099400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82126b3f2841d1e9fb6a6bcf7698a63334f90f573483d1ca00f89cb972a3fbb6. 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/ARF099400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f8d26d8fd629cc8e5946a0f05088fb9a6a95b38b146b52fc97f1832507d503. 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/ARF099400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03df68a8f4392a6e8d792d79f0a72687b6346c96fa3c5239fee2a7d5a49b104. 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/ARF099400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc1f5f471347c3192963167f6a6b729a478c00e0966c1c13f1aa171302cdfbf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF099400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9149e7eea452cb3dea36d845f1721ab6c8ec4fd6d7ba5bce7e1a632b812866. 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/ARF099400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3356a57f2296c47aed99d7435a7ab2ca1622a2454af4e1ce94c4c8700007f5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ARF099400015.
Presente (El Momento en Que Estás) [50º Aniversario]
Presente (El Momento en Que Estás) - 50º Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72ecff2c7ec684e06bbe3a8946679ecc8bf2c85b9cce4cc10c6bc9f7366b5bb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF862000035.
De Brutas, Nada (Soundtrack de la Serie de Televisión)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faa4d3660e6ef5abb5494c893cc52831590d27aabec2509368e94f16fc5577d. 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/ARJ2V2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1379fb3f99d80fc054b9a406fc1fe2df8adbb15562d57da0f0dbcb136320315e. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/DEN960831102.