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 0xb1ebe1eba5068284061294c07667863dbba80ac8e85c103b5d9a9fcbbd3dcdbc. 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/90ccaff3-fc33-48ef-bee4-c33d7583dc4c.json and https://artists.proofprofile.net/proofs/artist/90ccaff3-fc33-48ef-bee4-c33d7583dc4c.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 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 0x90def512bff52b82bfbc19c00466f21ab5a8ff96741ce7ce3d5e8a27d02bf907. 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/QZ5AB1747306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a14aee4c3defe4960a9135c1937c229193604ac3f9c40e30f564c7691a97e9. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BXSMW1800077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037b1c04154e62f20fbee2ea92188e567b5f0de4566bdaa00470c5bae35f17dd. 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/QZ5AB2021074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd811efa72a4c4eb23357760796de3dbe714a404044345f43901e8213f92d33. 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/BRUM71803080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ed48d5e2491f3caf45dfeb01fd4c72010071514d94d0924c25a32232604525. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/US7VG1986810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355d43641a3008cd025ebc113fc25a2930ff2cc62eef6caf95bea8421b0cc13f. 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/QZHZ32172752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9377639be8211c2234b6d523477d47c29a54e5f7b91b345e5eff8fdd73b9206f. 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/QZHZ52106141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5d5e271f3673d0a528d26ded989fe755cedbe0872a311a626d512f080b8635. 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/QZHZ52105943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbdb1e568a117d45f28f76c8e80de56339a0c036023b1c831885a0758f8b343a. 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/BXFW32100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfbdb8fef3156264f85748b84497dfc71af37e9514505ad19b4cc7c469d06ce. 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/QZMZ92171514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23bfcfafc46fd5c7d0ccb5427a005d2002c4bed131eaffb321482a5e2c36aded. 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/QZNJV2306840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a4fa8dca7eb3d9087b81f96d3e31e1450eb6af3c8378d2b3d9b31009d50c3b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNJV2371773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79483dba2948c3e357edb9b9916bdddb3af956428b6b35662ffa978b44f45cae. 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/QZNJV2371780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc220fae594e28d278db79d809418ac468377de6b664fe4511066a4804e385220. 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/QZNJV2371784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e91884264da766b82e7c2038d31986c5c260c1fd6b89f700574d00469ec9f41. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/BKTTS2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9522ea7d3f0a2020b1bddca37754e7444381fea0fc28db864603ff0453c88587. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZTVM2417994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a87824b1a2c161e816baded3d955044c5bd9dddad56f47ae030780f2dc6c04b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZTVM2417998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a3704cfee52176fbf9a04edfb32bcd0770fb4e25e7461ae4a55c09c1d0324d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZW9K2480937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aee92ed2bc012e20ad3c30abfb1d15946feacca95ed9d78040b2ebb559ed3d6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZGLS2576950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d99ba07dcf59be3810c53a90b5379ef589a31694d7588b19288f398fa331578. 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/QZGLS2576951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd546641e8afaade083815c4e5e19d9619e1b54bb558b1c57c435c3404090378. 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/QZGLS2576954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b843d29a4345ea50820ee9b21d74c6c1f48f64b42ac9953cca0cfba80c9383. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZGLS2576961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883ae7f81efbe359b887a021dbc885468284e7995299c485c4ddec4fd6e660df. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZGLS2576953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1735e652ef07d2c93df501f26d97b66c98b32a7254ee1be0bd0fbe59aba45d. 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/QZGLS2576955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8ac321088d24e87f92b589bda12cb57ea03f7775f819c18235355c5c4c4542. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZGLS2576956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6448fe23db1fada1e7b2a71b0317ba584455e63fa7e26dfbc1796dec2d988eb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZGLS2576957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfd10913d7b8a9bbbb2ea21657f2b3e37f60035e879a5058e4cc5df9447e843. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZGLS2576959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2287f1f3c74328544f02d6c6617bcb3d87cbd6d0ad07acf720f1cda313818e65. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZGLS2576962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973c5bce81fef881aa133eae531494082c4bf1bbf4ff3034c16b996ca3b4bf0d. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZGLS2576963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca355c831e6d37c5313c99bc9a06a6a278d276b7c17b78262d115d5f9da46b81. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZTPX2582071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e89d241869eea7d608027de5d1584e0b2dc2ca523efab58a493cdaa6e164aa7. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZTPX2582072.
Pode Me Bloquear/Eu Sei de Cor/Infiel - Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa099dac7153dd36b497726907a7a951d9e7a27a565d1e6d102b4fc851c21ae11. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTPX2582075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f01e1f007da5241bac38796a85a2f3e3f2cd040ad687a650c806337ebd2120. 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/QZGLM2524328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba99f6e7e5f042999ed81becf6b1af89e0260bf212b79d6360bc6a9cc9d28a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZGLS2102323.