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 0x065166dd0ebb450dcec4ff577c6760bf96a7aff8291b1b4355cd647d6d16be60. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9badd74-0563-4488-99f0-9fffd06a3ecd.json and https://artists.proofprofile.net/proofs/artist/c9badd74-0563-4488-99f0-9fffd06a3ecd.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 0xc696084cdada8ebbbc124891d937b959aa30fee0ac430ee9266feb90bea7aa6a. 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/US83Z2344882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28cfb3ac09f57b0012da30c94dae84e3a672c8a88c695b65a228ff5c0fd3ea4. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US83Z2344883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582f26a4d1344b74e7c6cefcb341c2834ffd0bf8cfb4ad4add04a88b87405a6d. 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/CA5KR2504909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9becae9be06909b894bee520aca6c30e8820b4bca7e0a5f8705658d51e809bc4. 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/CA5KR2504910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcfb4bc0ef1eb3f88928a52700bf9ea26212119770edabacaf2543d91d87b9a. 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/GBLV62409425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52547183984d3bdeef72000a04c6436a05811093717b8a219354133c67fc786. 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/GBLV62400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4448d1046ec6ebceff386f2631cec7e2c56d8deae52aa2188f1aefa15ebf90. 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/US83Z2410271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc314948b2340a2f2d32aa1f501ea5efd690f23cfac11fe05697d6ab7789d58a3. 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/UKR6V2484340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8fbc76e7dadc1fd1da63ed1dbb9d51d7e4280290be3e2d355f2f0f14c1a849. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/US83Z2404035.
Radical Experience - Gabriel Moraes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849923a3317875fa18b87284dc1884c9a044ca2dd37e790ac4766cb39589a3e8. 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/US83Z2404036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd28f7438ab50598bbb314f711a812f29946e86cc4d807d99a4ccc9c1459e69. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/US83Z2404037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa08a9e2a293b4e8856409414d094db7ef14e4a374dc4dfdad274dbf7d9e2279. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/US83Z2404038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e8ef12b392116cbb858de6d076b957ba0486f5038cdefc43e26e1d430d4486. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T22:55:06Z), 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/DEH742430540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1f2589708ea60c1f6e225069c1751c60cf633e698e507dbb8009d60718e3c5. 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/DEH742430544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4120c5feaff009906df4cf40cf4b7e78eef866d09bdc4f027b4a7fb6b137e7. 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/DKZVA2400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28ec92abd778e43b211c5df4e6c2d5a98b8f25c79a1bbfc43db6e64accfec44. 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/DKZVA2400246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd78df875e8fc031967e0340d1db5da15ceb2e20e543b7ed5b940720e8df9fd. 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/DKZVA2400247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c4c8a11e66d69dc4b2219a40c179483d42b1a4dac2a26e93a92af7b22367a4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/DKZVA2400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2552533d0f69cd37a0c3383902af4ec6190ec3ccee044972a0fd342cdf2b5a23. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US83Z2218418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3b7f96121ba50fe228e6d953ab1a5ed779749c5f7f96052abadea083f37193. 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/US83Z2481277.
Stellar Bass Pulse - Marco Miranda Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0401c41b1615b7934e9459dc16a88a4263b2331b13b30182c5bcf00654488cf8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2481279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee5b58a1bea7eec9c2ab7aae00b648ebea4ab3f3ffcc7ea598d875ce0159ce6. 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/US83Z2481278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793c7d490e7485408ac3b791db98aee4165b2f78340b5b1f25a2171670b52103. 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/DEH742422372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277db8b1267b2bfb978255284d82fa6f682ec722f7c9906724c2f6ab64905ebf. 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/DEH742422374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44fefd0d5a313bc06cc39a9c0f76506fb81330061c29a8748d604a2fb619fda9. 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/DEH742422373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74613ec26bb0e4703c1fcfbc01d8bbd614985c4cbe3c7b16060a38557b5e876c. 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/DEH742308365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e134cc92439bb4ad80113e8426d3090aea603695b815d6114bbc01d88778174. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/US83Z2410270.