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 0xdfcadf51ddb38f58b41f04df5e919ada51346492fe417d559916c8c1db0fdf0c. 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/11739de0-3fc6-409b-b509-48b13c1f7e6a.json and https://artists.proofprofile.net/proofs/artist/11739de0-3fc6-409b-b509-48b13c1f7e6a.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 0x4aefb2e3db32e12c825e29011d691cd2f4a0f98be48276f9e7eb6e5fb947e7e8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:38Z), 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/GB8BS1000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf73df35a5119d2e671c5db94288bec3679d7de44c5a790f36049e0ef44ab1c72. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/GB8BS1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5559deb65e387588ae31bfc949e6b4ad3053c48de838c918c9cde1281aa3cd. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/GB8BS1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81efee2aa37859c6da03b76569e962f3cba4c17747a276d76928d45fe735398d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GB8BS1000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82048213d544a8001e70552df7e5f32ff80bb05e04cefd7c32a80fe6998f76ff. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GB8BS1000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3db1e3be6f6d2e8a1ab2ff5fa47a84c86d430cc54853eb622a537945d70bad. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBDHC1225103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814d05cc23fc9b6a2f70444443a8f11caeace7842d350a801d96ee97ccb59842. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GBDHC1225104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2529fb5e7da4aeb612395fd56385992cd186b1c78ab2ab1a8ace2e0ad5d066ac. 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/GBDHC1225106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b3512eae6671a88b48e70566d1b7dfa45365b4eecdf525da5a55169c52faad. 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/GBDHC1225112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab657590c221bcf3c627e8b4aa23f0fe49fc59e719b3c97c8723308f6d0a251c. 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/GBDHC1329001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2786ce925594c4272bee41b197ba1f091d0ca319a0ac95255d88aced8d8dfee3. 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/GBDHC1429102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24942f583ea65e7029b99c20a97329979a8086a7a4bcf767c4e86689d0ecab4. 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/GBDHC1429103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca320627b7b2795ed7934b0fab2c0cbf56c372e496b38e81d52a7f54f6c83527. 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/GBDHC1429104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4f48d8142b1ffc9039e4dff30683710aa4735e20a68ce338dbba6bf238f82a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:05:02Z), 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/TCADR1861875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd250e8fc3f8629be9ed8e5111de12ca5961d4d85bbfc16d95c73cdcaeb50cb44. 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/TCADR1861884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c95de8ab4bdf8a5ce64b073578c188ac5e59fecd00bff143854c82702569a7. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TCADR1861888.
You Spoke Louder Everyday (Unsung Heroes- Iqbal Masih)
Young but Strong Like No Other (Unsung Heroes - Ruby Bridges)
Our Night Out (10th Anniversary Special Addition)
Our Night Out (10th Anniversary Special Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd178fdbd4e420e6532ffd083fb145161dfbe7b2dde4969529fb1c0b306018734. 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/FR59R2184315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3c8e67c550bfe4f4fb20a9ef5a5130f8db8e13c6b7f4b29b92888b0225cd46. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:27:43Z), 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/ES71G2152168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x918837ccba6ad5250f7de7ac0c2c31c5f1cf01f9167499ab4b26d81ac5ccd2d5. 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/ES71G2154021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7307f0e85f125d144c06f7df1521da5e066d134ced35e4b04f5418ca2876a9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES71G2154022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d92c67c0bf0d2fe88c6f2efd7ab1dc4f865de7f70ebbef20a2037707962e321. 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/ES71G2154024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c472f7f8f706d542fad04dbc6d8ff024ce4f545fa0f6e40b42ddff258ba54d. 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/ES71G2154025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46fb1a52262e561650f9744fd7a919dcf52621353aca6d37a2f996e112241453. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/GXCBK2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cadce806df181049cd9edf87c2edf7abe65247223a8ab6113f1a57fce4fb2e8. 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/GXCBK2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb003ee8d2c9b81c6249d215aafdb45d2e2bbeaa67343eaae2436b215a7f944. 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/DEVF42202295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123c7a9bef1c2320207570cdea087cd121341343c32f583d632c78ff2c24a7ae. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/DEVF42202300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfb6f6951639597aba738650bc4994520fde62b68c18720a49878b5db5ca66d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/DEVF42202305.