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 0x8366ae91b9eae0ec47f7f94321149b7b5b2ed40b3639fb290512e5b8f8f134ed. 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/8bb5c949-a934-436c-bae4-dc7291cad6f5.json and https://artists.proofprofile.net/proofs/artist/8bb5c949-a934-436c-bae4-dc7291cad6f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tons #3 - Velocidade (BR 101) [feat. CRIVO]
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 0x2f4eaa648bd2ec6bac9e4a2d3f5f34de237a708b8b54dd97e311639c63af25cc. 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/BCJAV2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c418eeb04e3cf2cffc370f88f1f75b5c6890cd33c58cf349bb1f2cf2088e2f8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BCJAV2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee78e355fcb621296764497e87431b5bb87e0f392c91f1b000a5d934e229ac62. 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/BCJAV2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb59f7d9cb42ca5d7599eb5f9023fbad88091bfbd21ab882fcb5c02e5d5ba20d. 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/BCJAV2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f8c70539f6b947ab129a504463ae900b61366d7fe8c2f698caa92caa509e9e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BCJAV2000024.
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 0x2fa27530002ea2014f0fd4d35dace480dcde04fca210d52b1299c8a7ac5615b3. 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/QZGLS1966901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d937e4b95b80381ea3165e25d904a283c32e569d0c2ff91400bf2682f225117. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZGLS1966906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7f36f6915be7ccaf0a56cb96d1f73939ea4b86900205981420849291357acd. 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/QZGLS1966908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9956ed5c59b2af66347b6ad5afa6bb9aa6e585fd908785468f7262f19063c8. 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/QZGLS1966910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4432c5c4b3605de5a2fef98e923d77a57ccf2e5b4a00fd19dbdff53fd443f2df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1966911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3152f9c8b0bb95be8dd31725f2ae02214722937e0c508d0761df5e12b5d5a6b1. 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/QZGLS1966912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dd989e9a75cf904a71172a0209ed1fdcf0b3ae91cec0d9abb6ace6dd89d0e5. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/QZGLS1966902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e64803a45bc9967f11abe6b45b3e4ba69bd597b23fda9bff0f42fddf0b5c72. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZGLS1966903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129f6f636f0f6a67406deef88128b8feeac38a8360d77cbeeb32bdeac93470b6. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZGLS1966904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67a1c0583b60e57b32ac99f0aa8b3995d931e35ae7a0448624cff1b60276a89. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZGLS1966905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ea6b2b37bcf0b906e541d8ba085dca36efa394d5baea0f68f139384e81a5e3. 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/QZGLS1966907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2826bd3596c73ae89a6bda5375d173a484114d217d3c1d972c9992073985336c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZGLS1966909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf366732c5da6952c11d5ecd47f3f895f4cdb3829047055d151f2a1e97b4276. 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/BX3H92400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8793f974442207c2a88e6489e5d701bc605fc061c44c2bbb903e55da7f6dee. 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/BX2BT2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cd1e66649fb0b8bff8c76c7d75045890e4ec698e7597c06569ef5ac545cc77. 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/QZHZ62018951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437e508b6f794fd3119e3a58fb493f620f248cdeb6aa75e27892c966be27d441. 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/BRQ4H2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32885df939a7668f365151eff47a80d8291c25e0f1a4118e6809d0706cae18e. 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/QZHZ51972782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b433369fbdd40caa5765600aedcec1af0b4345dea205bdef8b4c2736a66aa6. 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/QZ5AB1941086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c32ab003f9bb64646b399b33ede01b4e5c98c4aa9f77327f726317cb74d9a83. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/BXYVJ2100039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e4cd443719a1f89731ebf08ed8b6eaa6b44430a67874f0793b278b8c4849d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2086419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381a839ea59f795f0e4c027642992d23944cd89e1d57cbcc0127f6daa63274c2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2086421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2e803f3a8baf8b0283127310fbf56c9839e9eb98127ac2b523f811b59cb272. 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/QZ5AB2086423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacccb6518631bf0b5ab50734e2b84eda34c417380ec46e84aa91c5cf19a54156. 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/QZ5AB2086420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd774b706db4eb08356ad5b9a0a4097eff57ebae794ab5d45b039535a2fdbbb. 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/QZGLM1957593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e14aeb7ab3f372d86ba8d0b4f06e6c898d4be043d6c60d79c4ecd01b11de8cb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/QZ5AB2086424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0a925f5d37783cc3476c6e60eb6c62d44a7654482f55903d0e91d1a9de5ee1. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZ5AB2086425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec1fa71cc17997de4ddbdfe29102313d798f5f040fd62f7228ff2dcc8676744. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZ5AB2086428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165e16af2f77baf81e169eee3c8087499593319f72878c1b5d659806865e34f5. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BXBRU1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb315acdc840e6d2ccccb0f96e7467cf179f133495ff6aa94776acf11a5ac1a64. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BK44J2300001.