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 0x23e5ec81021aac846ea876c411316ea4a9ed5d0ad3714b4ba298bafbbd37a08e. 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/9f974f24-a519-4745-9fc9-a2dbe097a807.json and https://artists.proofprofile.net/proofs/artist/9f974f24-a519-4745-9fc9-a2dbe097a807.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 0x7821ff23f285006bfe55a473902e1343b75ca3aa520e67cf6dc5ae057d64d304. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZFYY2205908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1454a5047cc3e5b7409010d246d00c9325198b9e5cacc1cc12b4330412208f. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZK6M2223513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebb4eedce9c8e97e377d536aa4adde2472297ca6be61e52a7dd51c9c81bdb45. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/CBAUX2302001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bad0bb3244a321785b874b238d04e85d18755f12d8a0dd19cc880bbd62165b. 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/NLCK42231527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd200e3c18e7eb4683518858b3cfa95a7abeaec9fd8da2e9c09f3e9170cd2142b. 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/NLCK42231526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16627a1028cabacb936ec6299fc9e35324a8d18fae8ef0c95daf23c5b3e40e01. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:49:01Z), 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/CBAUX2302332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b62ec84783ee16b8896faf5695f4be52126b7fd821ad61041fb571046f16e8. 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/DEH742400737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56db7aaf055e0d3e30a00dc8d18a7ee0524d1969b09e3fe435a249a40bdf4f2d. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/CBAUX2302403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1edda275572c4bd2e966a0bb0a5521ca49019641e6294675f11e8e02d669100. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/CBAUX2302404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ae1830d9b694f6b58f2741dc5f187d4231bc2fd1cc03d21e300771e56fb58d. 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/CBAUX2402405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a349e0e5864c43df7aca60a39ddd10af9d06748f4548ded7b34ed4cd0dbd465. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/CBAUX2402406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e83b03449f226dd2835f708af563fe5c31e6ae4898f05843da7df0b9b2cfaa5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CBAUX2402408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec2dd1f36edef4e4405821f312e1b42abb51dcc030a01feec4be7f719a1fb61. 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/UKY7B2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0061b98e09b869f87ad499664d346ab84b4bc6aa0779174e1802d5dc3544385. 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/USAT22406452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c3eb73ce2492c86969971198eff1de30a8915070c574271814d76c0a3cbb09. 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/CBAUX2402728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480dbbce427c3ad0aa031921fb1e25d9f997813a9b8ef50e6bcbc4d92800e412. 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/CBAUX2302312.
DNA (Loving You) [feat. Hannah Boleyn] [Zorza Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44c8b6803ae42b8c10930360b6591e280346f06da171604f9f4deb13f1e7eb4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USAT22400728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a349e0e5864c43df7aca60a39ddd10af9d06748f4548ded7b34ed4cd0dbd465. 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/CBAUX2402406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880eca3c2bec136846233e529e7ff568d3029d94537a65f40fe945957d50187e. 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/NL8RL2460586.