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 0x2d512b14caf1988f1778de63c92e5467ccbbd57028e18ff95bdde6a4ad27c643. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9750f566-d374-4608-8e9c-98658c78f0a8.json and https://artists.proofprofile.net/proofs/artist/9750f566-d374-4608-8e9c-98658c78f0a8.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 0xd1cdb9f58bd8294beaab98d74824c7550d68e3b26c71da30fd97e5be0679bf83. 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/NLRD51967495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686ab982b56bf243fde6c12ad62d8ddf98d99af0165cd3dfd674b45b6b5b3ace. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLRD51967496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbbacd08d0a208e57845b2cf06f616b0b6f33d5dfb949216d9cd7850766d47e. 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/NLRD51953671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x550661b241598e6fc215df52e1f5e0dcb8d6a7d08cf40ac0fbf637de130b6f95. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/NLRD51967497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6219dab80b23d8fbe83b1970976cf8dc653bcef30cef5edb3739067c3bbc6ad. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD51953674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3975df941eebb9b17b984830297d3bf1af0f90b981516ae54485506bd752528a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLRD51953676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f6c8f10eadd8c97a04f118a148c30726309ff6c17eaea7acab48032ff4cd58. 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/NLRD51953685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ccadce081d4ec5afb43fdb23c927881735fa13c41f97bf6344f19aba310ef. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:04:51Z), 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/NLRD51953713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3635763e01ceddc9bba57ea6dc9093f85c1ca442dd9240f1133b602a93142a87. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/NLRD51953718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63afb04bbd2fc083033679464cac1435616799805756bf2429cefe050abcc5ca. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:30:07Z), 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/NLRD51953726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb6131a19ac8b34ce60efb3009562ab08a80b7b64c27e19dca4e08d30f73e12. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLRD51953728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2f86d2a737f62ea8516cd3dfcbb68559824f8c5d30e3dd30379bc45c690cbb. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/NLRD51953757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094491cbb76ae319937adecf30cf2d78b6d96e88bab96f9e8fe9680945d21c7e. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZNWX2024438.
Ocean Eyes (Acoustic Covers Versions of Popular Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab57b341d3f7fcdab5801c6ffa09d498f98c1bf2af41b97d90adfbd2c729ab. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLRD52017516.
I Want It That Way (Acoustic Covers of Popular Songs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6acc84a64ce3ba4d09f9d094ba8658ede3045b4d778b8ca24c5af4bccc80988. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:45:27Z), 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/QZPLR2059981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16076d7757c37c603d98ad3bc305e098ed9b04634133252d93735a86d1954c08. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:08:31Z), 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/QZNWZ2048787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8553be775538fcea407bed73f17ee3d3c5b0196ee55ddeca57699a343db74e. 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/QZDA62111060.
Thunder (Acoustic Covers of Popular Songs)
Thunder - Acoustic Covers of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac802b5c7956e6ecd34d0166a6695cbf8c8bb9fb13126455e7631dcb05e78ea6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLRD52017640.
Acoustic Covers Versions of Popular Songs & Music - Acustic Covers - Chill Out Covers - Lounge Covers - Hits Acusticos Relax
I Want It That Way - Acoustic Covers of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e465c83c4a1ee66890132b5b6c6a85f47d22daf574f9594edf12aed6fa29b8. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLRD51953747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0727ab706cbbc6903bd10cb3df613f2f9a20d0f77c3316dabb18450824deddb6. 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/NLRD51953673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac802b5c7956e6ecd34d0166a6695cbf8c8bb9fb13126455e7631dcb05e78ea6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:37:32Z), 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/NLRD52017640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f9bd6b1849213bcd19ad3ea16ae3a52ead83d02c7e0260da81401e1fd7d7c65. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/NLRD51953727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb6131a19ac8b34ce60efb3009562ab08a80b7b64c27e19dca4e08d30f73e12. 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/NLRD51953728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63afb04bbd2fc083033679464cac1435616799805756bf2429cefe050abcc5ca. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:51Z), 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/NLRD51953726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9ccadce081d4ec5afb43fdb23c927881735fa13c41f97bf6344f19aba310ef. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:09:09Z), 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/NLRD51953713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3635763e01ceddc9bba57ea6dc9093f85c1ca442dd9240f1133b602a93142a87. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLRD51953718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cdb9f58bd8294beaab98d74824c7550d68e3b26c71da30fd97e5be0679bf83. 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/NLRD51967495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbbacd08d0a208e57845b2cf06f616b0b6f33d5dfb949216d9cd7850766d47e. 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/NLRD51953671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb708e6ffa556ecb359f6e935fd3fbfff1ee880c99f2a8a6b1269ab70c08f94. 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/NLRD51953751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2c59657d295991fc4dcc031be1d7d74264ed25c67409d9ca4f8835759a301c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLRD51967498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6219dab80b23d8fbe83b1970976cf8dc653bcef30cef5edb3739067c3bbc6ad. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLRD51953674.
Covers Culture Presents: Morning Chillout Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e465c83c4a1ee66890132b5b6c6a85f47d22daf574f9594edf12aed6fa29b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLRD51953747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0727ab706cbbc6903bd10cb3df613f2f9a20d0f77c3316dabb18450824deddb6. 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/NLRD51953673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1192843daf2f8a4e1d8021c3c12e048a8b32b9cdc7c5389a00fdbbb4b3c22263. 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/NLRD51953749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8db500ea944b821f64752ce0ef5a2124bc46d5a61f6b24b261fef99d9a553e. 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/NLRD51953714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab57b341d3f7fcdab5801c6ffa09d498f98c1bf2af41b97d90adfbd2c729ab. 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/NLRD52017516.