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 0xcdfe3ff80d52dab3867f719c4d79ec069d70c62626648d7b114175f7688c6804. 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/f4d5ae1f-e5ad-440b-8596-6acb33818133.json and https://artists.proofprofile.net/proofs/artist/f4d5ae1f-e5ad-440b-8596-6acb33818133.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 0x654784bd693c2836408c284b4233309262496b379e1ea097dc6dc72b31409280. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AU4T01100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4643426fdca10bf092da36fdb2b1d6f06a3f464e179d6ad67dfe5050d5c44705. 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/AU4T01100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14da89363d1b7d88eefca79d2ae74ab1812d191272765864f1f57219b440f88. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AU4T01100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63066bcae8bad693db144699f6863d546a17404cf95ef18b39f34b130b7f697d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/AU4T01100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96519f35c7d32c46d794b515e399400067c956a3d43850e23ca05d8744e6ae46. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/AU4T01100026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d0aeb1b1abb024d9d1ff913c8346b11e9fabb653865d567465976cf6d1205f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AU4T01100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf983257ea2baa3ea48e2e4fde8f64b6f8fba727d22956b8b77aff5e5d82f8e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/AU4T01100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ed9c2c4ac77808f7768c8e6153450ebb8ddc720852bbacc8ccdeb6c34fe34d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/AU4TO1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6be0103014862220d80019069f1c22dee42d2e9c84d6af01bc5bc86bad38af. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/AU4TO1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a4a2fdf8c18022999954773ad3cf6a62e787130dacc92b6a4f3711ef41e2f7. 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/AU4TO1500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bec57ce57a2c32ea733e999c1072de146aada52d2d3c79a772a09c078889b3. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/AU4TO1500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2731c3a312811cc0d0b99513cab1caaf41270e64ce94600ef122e0373ad5ed1. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/AU4TO1500036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848f6591d20d93e46a829aec18869ef615fe540b66ff1872b97d2755f4eab6f. 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/AU4TO1500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc7c702c4d884aa75ecf41d740e753380467c8702e819a0b3222e8183a0cc08. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/AU4TO1500039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46c6b157ef31f5e4b6daabf257a46df4b529dbe584840bd2b800caf76ba8fa8. 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/AU4TO1700048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd286717cb6a0bea43905db79107245f513874214d38e4531d5c81d6c33a02f6a. 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/AU4TO1700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c867adff08ba29f044b764005b7f4c18dd1ff309bfcd519950eaa52f9361f0. 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/AU4TO1700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd104b58b5b966a2e37aaf44d8abc13d3e18adaa3693927c7457912d9b33d1217. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/AU4TO1700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b7c278bac20e754ed8beb1fceee5ff0efc19bac1fef9d4200837879e6ba3df. 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/AU4TO1700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd823ecdf09ff0fffbab793b5d92584faed288ac3715586089013aeefa6106e87. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AU4TO1700058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68fae179402a825cd1e6159f794528054e92833d3845dcbd2d55227cbae9168. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AU4TO1700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed5571312d662c031880cee2c8e4e8acdaf1948a7c71e667e5773476b56fdd3. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/AU4TO1700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd142a19f2a2fcdc1e629c82dfd5c4e54837a5b4785e91f3353d411de0ebb733. 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/AU4TO1700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d89aac029bd3ee501775cfa07e02ca40ccbdd6cc2f3470621fcd57f501c7e3. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/AU4TO1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1025c19a76534d977dc49ffcb8dc0b4d90e8bec0a45200360c8197a68e4bd7. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/AU4TO1700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabff96a9f9e2dce3b874fb0cc787b64f3f051fc0343e9a99703ebf8901bd9c7. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QZZ8A2408850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fec140e1777a62711ff3747212a681893d32d3f5074c0c1cc463ca371e4fe8e. 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/QZZEB2400692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2b94f5ded7f1d06232725f267bb64658ba89d3a715317ab7caadb8b9d196d6. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QZZEB2400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabff96a9f9e2dce3b874fb0cc787b64f3f051fc0343e9a99703ebf8901bd9c7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZZ8A2408850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9054d46886d623dd47c5b3a34b929acbdd827498beded4ec0061463f7fe77b0c. 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/QZZEB2400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae5267c1ea446b8984d0721483188e9429c224bcbc026e1fbe912b74ca67b16. 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/QZADU2013206.
We Are A Tribe - Kundalini Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615a6a6ce8e188db34010859559128fc824d2cf8b89fb94782dfaffd9a8b3c1d. 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/GBWUL2296211.
We Are A Tribe - Ujjayi Soundsystem Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9656357f2d3340ec07067c6ee228f4e2cfc49628bb402101d089a859d727b616. 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/GBWUL2296214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7509bea1d1089dabfc9f0baac5ebcaa9399cfd2ccbf5cb3bc24ef658fc4350a0. 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/USA2P2109788.
Here in the Now - Temple Step & DJ LoQi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf637b8140595a58a8a687e2bcb67d21bc271ccabc61c7271121c9655d59a9bea. 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/AUZQJ1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d78f0ca8f54ebd166b0c11111517c45e06f6a3ff039209a6704b6bbbd888a8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/AUZQJ1600025.
We Are A Tribe (Ujjayi Soundsystem Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9656357f2d3340ec07067c6ee228f4e2cfc49628bb402101d089a859d727b616. 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/GBWUL2296214.
We Are A Tribe (Kundalini Project Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615a6a6ce8e188db34010859559128fc824d2cf8b89fb94782dfaffd9a8b3c1d. 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/GBWUL2296211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3203a2bd0f585fb27a70cc98b2e941dc6d085d6439c3dde6745de396daa3538c. 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/USCGJ1950508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb505f93d43198b493651d7ab4623246a5217650853e286984ff79355945891a8. 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/AUXZB2000032.
We Are A Tribe - Niraj Naik & Soma Breath Remix
We Are A Tribe (Niraj Naik & Soma Breath Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e500c28033f17cc7e378c70ec3e189671a5df79f051123b08d9365bc4952dc6. 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/QZZ772456362.