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 0x4e3c06e65e436a362cc365d4ef367238687f7f127e3a7cf0de072e07ecb79304. 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/500895be-4f5d-4d7f-9f1e-da8a53be3e42.json and https://artists.proofprofile.net/proofs/artist/500895be-4f5d-4d7f-9f1e-da8a53be3e42.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 0x0f3e8835eb16eae632cef07b2073d11e1cc0b1f826545517e41ca50f601fdaa6. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA052393854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c94dc9746363f4e0dc9f360fd5ddacfddfb7435ba5a66ec2e1af769673a1eaa. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/DGA052393857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4e56ebae60b9d7c8cf675c9361cd3b0f2b602158516d540ad9e51de9bda867. 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/DGA052393858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9b90bdd1f86767b0e9643a9088367735ecf66bb6aefbb760fa149bc904a952. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA052393859.
Y Ahora Te Vas / Te Vas a Arrepentir (En Vivo)
Iluminará / Como El Agua Mansa (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e8045af78bf664f49623b55fb570ee25e49fcbb808a4ef85b0bed7b2057342. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMFME1969795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e8045af78bf664f49623b55fb570ee25e49fcbb808a4ef85b0bed7b2057342. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME1969795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28957dcd98ff85d90c709ed550381bc87614b8cfbe4ff71a5d2c87b7aabd9619. 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/QMFME1969796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3739fcae596fec25322ff2919fe70dae24aa4965acddee8c8720845e5d0289f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:52Z), 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/QMFME1969771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665c868692d81e508c1eb04bc4a0a83a0b1a38b1465063ffc46f211ea4f82bbb. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMFME1969772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d54da7bd7a15e0ec9b5f8ca62428b08f4d5763f7645a58c33abb3643cf69e24. 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/QMFME1969773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28119c70bd3a07b1f3d559fc55675b9f7a9774b94b835bdd998af9ae12d694fe. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USANG2049452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28119c70bd3a07b1f3d559fc55675b9f7a9774b94b835bdd998af9ae12d694fe. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USANG2049452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26da7a96b96607a6f9a19a23fac16d6d4af75bc5e38c8cb4262d18a2b194397e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ESA011782593.
Rosa Púrpura / Costañera / Exótica / Mujer Cósmica / Si No Estás
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bb73e97c5b05f86b2326345a7b687e924b302e1461a78c182fa9316e9a1d71. 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/USANG2187798.
Como Duele / Tu Presa / Te Vas A Arrepentir
Como Duele/ Tu Presa/ Te Vas A Arrepentir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7538af463c88692a4d62fc40e21b4e3fedf2ca8e55d08852897ddb7cf90a6caa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AR5UH2400695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939d1e609fd54da34e475b9b760d31034209ac20b605219321f16098c93b7862. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ARF842000031.
EL MAGO Y LA NUEVA / Zapada EN VIVO en UN POCO DE RUIDO!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df033525907dd81ff739edb9f93ed1b461ef6e5a54de80975c7d3d5933bc3a6. 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/AR5UH2400310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70f0bd5c338ba495f8196f25552c0b973405123281912710fca6b0eda61bae. 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/AR5UH2400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe814b8452639a7935520c9730281d484da33ece0e294d01fccbf9905a2c55f92. 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/AR5UH2400312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1654f61bcdc167b7ba590c6149d73b6da339846036e1bbf88c4ff97b7ca84a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/AR5UH2400313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f951d121c1e845d7a4ee854d206bfc5ca367e7df6054d5df0de615ed6c774e. 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/AR5UH2400314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8eb73313ab6fbdcbae21bf19b01dc2229790c89793cf89a30b97539b9998a52. 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/AR5UH2400315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75c04f90e5bfa09454be7454abc2ba0c3dd5d7005a20ced84f9defb0bf7bc82. 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/AR5UH2400316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a508ed63dd8dc39cf451a427fb478681abe341c36867477bfb7edfb6cf4d00. 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/AR5UH2400317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6ebb3408e72061f01feeb9a6d4b69bf15d45ff993acb0b2d985bd36d327950. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/AR5UH2400318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2066b2c4919e933d06bd41654f66ed60fcb6ce7b08710b1fe9b4d69658944770. 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/AR5UH2400319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8738d9e6f2e7f1be2017135c37246e61d4adef04f8b5e78f9886099da26fbde5. 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/AR5UH2400320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd869ad75108632da3a8d08c8d7792418726ab980fc4867d0a928b18d9fbbb129. 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/AR5UH2400321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9223277af2651eb700338aa17cb788bdca8bb35d14f16641be3ab25e59fdb9. 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/AR5UH2400322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c917a594484dc830d589e01196307cf2dd60ba99884e747b2cd74cb03a2067. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/ARSER2000030.
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