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 0xbf1010d968e1941ae95170932771b0534db8ac6c46c3515332cf34427fabc041. 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/470abb83-12dc-4b84-8121-912fbbf3b1de.json and https://artists.proofprofile.net/proofs/artist/470abb83-12dc-4b84-8121-912fbbf3b1de.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 0x5d4e7234c03d13847e28efeb7776a6ade38760367560436e5a0ffe021a01d1f6. 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/FR6V81352630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a38ffc2f14038f2a56fccaf142ffdc8eca37194daec2ba0c17fc6933c89eb15. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:33:04Z), 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/ROROT1504301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79fdeabc16d5b0ffdc0e3473187fe9143360e24422f967338555bbd177dd53f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:41:06Z), 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/ROROT1607601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa346576a2e77944d69b1aa213a24b43b11fce48880dd9b417e67e60d000427b9. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:03:45Z), 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/ROROT1726801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481c9fa748a7b4cc3c61146efb46a30bf68208a3f7708a41688174b60dde8941. 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/ROCRP1805176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f63e9931fbf9266afb95c79aab2487e9343cca0c4bf0d20cec14b3a9543d45e. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/DGA052097096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03576fd46d5bd1bb1653e5f41811116abdf1d6e74dd1a72cf7479463ffaed59. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/ROTHR2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfb3e9930b5d894aebce1effe546a431c7a250042d0d8285924ae74cf46c782. 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/FRX762339712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad82daf90a035b906cd3e74f608892c4ab39002aa0381763f24fd9f41b4b2c9. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:33Z), 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/FRX762342711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012649a7cdb58741865938e2ceccec21e5bf16ee6bd86e42d0aab17fef305245. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FRX762342712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af173657758b8d9329837fd9f45c39bff7550ec391c15b9a8fbf1cd361fc496. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/DGA052397897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92e73dd0f0c252e74a9bea1ea5c31eda606f57451880d7cd819a724da2e7f47. 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/ROTHR2300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3e1cf1f984b24e280ec4c86644e94f95363cfb3b2a7b50b1800af21c5f9bf6. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/ROGRA2300685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ef719f0e236508f682d2fbbd0aea8939bc3c17ea61e5ecc0d4c6b6026eacd9. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/ROTHR2300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62ba6123bbc55a68618d4d6769d8232e633ad8b462d123545dcc540f7d68603. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:01:45Z), 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/ROGRA2400165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd00e684de6f7c83595de085ca4ba333112ab77b0174c5c474ff4ec64f15dd5. 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/ROGRA2400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd9a70cac444aca09b5854b01db84cadc38d73e373f024da0033b9a38c7801. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/ROGRA2400164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75bd55cdbeb75b5d3fb4580d3376875722d7f2343cb4da6ea0ffaf3f958ffa74. 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/ROGRA2500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb80abe3b24daee216a14769b006c18210478c667cb63c87ea1db1d790f57fc7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ROGRA2500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc19b9778b388ffd7b2033bb74ec3e50030453996f95e25ab34a2f3270f5dff. 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/ROGRA2500428.
8Dordinary, Vol. 2 (Enhanced Version Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cab292d1a449cf29a18053e7d4bf33a4e83ec413186837832228bece93eea7. 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/ROTHR2400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf2629f71028387eb278bac24a498fbbfd0d3cf6f1570d97f9d5d0975fc2d52. 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/ROTHR2400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38746f6d75a99d0e3eb2104ae856d938bd48ca4b68b612b809ddf3a9b21476ad. 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/ROTHR2400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41592840f27d2c3f648ce2eb27959e29470c3310bd3606972299b035a0b49478. 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/ROTHR2400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9257036e7d86691d1c70e02b264251438f115188857a77b9def9386a3d79729. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ROROT1538102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf559adfede3ad43be3b17efdf5406ace127c271d09699caff19945ef9a94ec4f. 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/ROTHR2300034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8c8bd444cdb0870ecd8df8559f7d839721f82069587252219013b2e495991a. 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/ROTHR2300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30656627e30334270d9430b45e03ed01e3145961af2a207b2202ab80c34323c5. 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/FR96X1962587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72252457d574ab0f026ddc517a72b50ebb1bbe581c276e5e6d2826a1c195f950. 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/ROTHR2000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319899dd54fa93e2c8520ede16d2e5f908e65262a7adfd211e987105597f0243. 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/ROTHR1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30656627e30334270d9430b45e03ed01e3145961af2a207b2202ab80c34323c5. 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/FR96X1962587.