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 0xfced274126b92cd011bbd6ac0001d33fa969bb3df04f56b87fc6181171f45e85. 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/40693a8a-2a97-4ea7-8465-acfce8dafbb8.json and https://artists.proofprofile.net/proofs/artist/40693a8a-2a97-4ea7-8465-acfce8dafbb8.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 0xa7171463b2dda5378303f27288475cf5f7d8f4c415543d0abd7de67caacaa5c7. 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/QZHZ41947476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f44d3656ece918a401e5c2e391a5a0117dae9d259c73849c22782a5df008ad. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHZ41947477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e261aecfaeb3449521be266715bf29cde4db52bffcfe2ca5127050101fcca2. 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/QZHZ41947478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3eecb89715a2a4962256e6467a4151dcfe8abd6c282cd5bff7692d1168aadc. 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/QZHZ41947480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29fe51b66507c7752bb7e4460f63d417a5b8341fea97853c8843e862b60301b7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/BR4TC1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcbe9d43ba355cf04cb2f8ebfb04c176e42816c38cf84885d0c6a2876dd1a9c5. 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/QZGLS2184618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa329185af381006cfc23bc2494310342942e22ec3dee0185115fb78bf01401. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:52:23Z), 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/QZHZ62131766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afbd2d55941e969f8b87c145190c2431e9700b259738138803383cd9208f213. 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/QZNJY2110328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf633c1a5a4ee2d8066459de4e5dd109bf5f3d5669594cca44d366efd274dad24. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:27Z), 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/QZNJY2110329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3b53d29b92045747ffe1965ce5f001d1d4811b497f378a95eae1580a16699f. 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/QZNJY2110331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80c995cc6919c0fb85da044b0cc76e808a592164c0492848bd828f4eb2ed032. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZNJY2136321.
Pop Rock Nacional Acústico Volume 1 (Cover)
Pop Rock Nacional Acústico Vol 2 (Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f21caf6409f4962b0d8c770b5da914e382712db048caf2113087fc86992491. 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/QZMZ92367038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d7a40bea6f4ad3db41bd226b53889ad6cf8a0950f93ca20d0a1cd0a5b0beb6. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:56:55Z), 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/QZMZ92367043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0462f6facf39b89083df6d713e2b9e792f5e1d8fc9a9318c9dd5f44f9578e7. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZ5AB2464637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1e32b5a46167513084043d68499bf9ee35c383483d318b8ecc7dcaa2d94ff7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZMZ92435693.
Dias Melhores/ Blowin' In The Wind - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fc88e04f17de6b1e9e77eb75374ba21438b4c9cd07e4efe39467ae84ed7bb3. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZMZ92435694.
Tempos Modernos/ Livin' On a Prayer - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb54f78134c3b18f7fe3296b6ac527c51545e701243b1a6d74b185cbd5aaefef. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZMZ92435695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2558945ff576feb7b41a759c0a2f2dddaa43b8b91e89dfb0a6f86fc252b1fe. 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/QZMZ92435696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b3b1464cc96e75d7b57132e739a8a59d0718c815a34b2ff9ef892a5fc3134a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:59:21Z), 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/QZMZ92435697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddebd2904a4646ed7448b3704595e4146c4d9d93be5f6588ecaf6c3e6d6c573. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMZ92435699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef95e1c5f008d18d24c10d9766e788424955154e99ae6918b2dc757af514c6ff. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZMZ92435701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9366ec101c78c235bf2bd1d46767e7276458b63514df06cbac745e52ebba7074. 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/QZMZ92435702.
Tarde Vazia/ 93 Million Miles - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca8c7dd9e5531610732aae153def323c8d4050f8c309e4c8c4699b8d566ab46. 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/QZMZ92435703.
Exagerado/ Amor pra Recomeçar / I Want To Hold Your Hand - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc9bb1fb6e40ec53fa126d5372cd8f748d39081f21ae844eb07b6f1201e55d5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZW9K2481216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0313083c8277b1c1588ab17799cd484b936b3df847fdf7aa05007bf0ea916e30. 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/QZW9K2481217.
Meu Erro/ Uma Brasileira/ Dani - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d7e49fa7393022f16f20c175f9a1672f03aa688651741ffe951d5c4777f4eb. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZW9K2481218.
Astronauta de Marmore/ Have You Ever Seen The Rain - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90da0c5f289615e6f88ec0e24220f16daa2da2a062800299575f52c4f47c97d5. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/QZW9K2481219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3c90855b9847da0ab76a7ca7292cafd0f7a03a12685e4ac1554383ef75bc30. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZW9K2481222.
Toda Forma de Amor/ Nao Quero Dinheiro - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e74c56310a4e4cfc9e62b7259de2d05cb79709ac46f504ed01adba9ea8cc3a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:09:12Z), 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/QZW9K2481226.
Pop Rock Nacional Acústico Volume 8 (Ao Vivo)
É Preciso Saber Viver / Wherever You Will Go - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e6a037af428fdeb4837710ba54d1f241b0bb06732722aab648044cf5ea7f26. 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/QZGLS2568088.
Pro Dia Nascer Feliz / Rock And Roll All Nite - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51a468184473046c1a2eba98a82fe2465682c92e32319f811176f9e42953968. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLS2568089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd28484ac16dc9a43bf051244fcb0171063c99a908b2fd4dcee355a5b78b92c5. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QZGLS2568090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df4f91ad8692445c1f31d32e308eb7b0ef3d2cc0337ade8d81b129e8eb76784. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZGLS2568092.
Radio Pirata / The Kids Aren't Alright - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d51f537267482e42c29fc5c2677fd638d73552c372d3de2314130c867d99a6. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZGLS2568094.
Esperando na Janela / Vivir Sin Aire - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9132954c686b19506eb47daf17641def0dd599396c4cb23caa99fd22efe5b9. 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/QZGLS2568095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566c3eb4ccb656f12add7ff96f8b42250b438025b11d049477fe66bf6a679140. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLS2568099.