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 0x965860a1b4f9d28a922711d2104ade2c0c49679de94327b202c8e6bd151c267c. 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/8da7a341-cabc-4842-b9d4-a980ce6911fd.json and https://artists.proofprofile.net/proofs/artist/8da7a341-cabc-4842-b9d4-a980ce6911fd.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 0xc8309b3c744645d37826fabbb7f83965d4f77ffc3eb817ee17444d0681b5e9a2. 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/QMDES1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c698243b8c5565d4ac2a66a5b27a480b91e4e1503695048b0a75463ce6b9e94. 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/QMDES1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf851e377c4459696c03bdcd69fd2c55d761bce603336c7d6888cee2e4cb7ae8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMDES1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9138b6ed13d477bb999db2083ad4c03abfc8b51a51ff467aa51491f9d29d4f00. 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/QMDES1600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd683bbbb111df1094a471eace5c70295b8c1fee82dad16e666bce34e66f7b025. 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/QMDES1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bd2cb85b8d2bbdbf5898c20217b331d66da2e3572bcc7d8e9d2b90ca4c248c. 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/QMDES1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03bebf2d99e0bb80ddaf91379843b4f449a6c88a1b25d88ef12c6dab4d030c55. 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/QMDES1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c0c6decb791eef5db8fa4c7c50dc3ec8143873facfc4434773c15783905070. 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/QMDES1600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020b19964a9624b079cb468ff359c7e74bd6dfa8b60216db5e7abc6aa3b57e92. 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/QMDES1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b1a57649b883c1043bc856f4f90c35fe5430686f21f43caed9b44b3f00d53c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/QMDES1600007.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a4a17caf392ee26a2244795f748a8c34e1e279bf828779398c39dff1cbfe40. 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/TCABC1137174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4edc0fd906e25fef9b70a6ceaf4ecaa06277d8024642acf74b88267e48aed394. 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/TCABC1137176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7520e23da102992323620221d8d9cd115ed9fbdc4f416a9e4d4e27377dc2995. 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/TCABC1137177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0be0c77f42170fc9eafeec02c498f4f419e4ef49598200a26a7fd68e1ef105. 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/TCABC1137178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef50f7174f1bef0e64b957e864082ad6f4904f0cf728e91383fde094c969be84. 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/TCABC1137179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73298f055a2369b789db66089b661b804dc7af10a01328b0747ee419b0248f20. 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/TCABC1137180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8243cc43a36cd1c4972f8250151e56e7712f8c5de09ce3bdef6359bd07555a4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCABC1137184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796df4e8d6282c69bae651880abb0284f4c84efc370bdae61099b2484421f87d. 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/TCABC1137185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd9a9a6b83d3156b135b856543e8f6f7d9c2e156a270205efec47fe0dc6f36c. 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/TCABC1137186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe27a23da9d01cfea77f5df03111a732f58e45d9f2b8132c5c6f68193f020258. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABC1137175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43292e704c88e128d94e0cdec370ffab28118ae15b295ae45cf6591af5085a6. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TCABC1137182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1421efbc749236b521b556a2e1e62961307fe5ec151052d07d5db1d1ba9720dd. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TCABC1137183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf40fe3032c5daa8fdc10fa48983d49fad0fdc752ca7cf650e79a37982012d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCABC1137187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af005a6235ca41386545ec052745cce444fe22ba3782f73c00ac41d7cb3d6e9. 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/QZTBD2357611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862e1ed4f14351a7b90f6147bed993a299150dd25074eff4766dc3f5125e1038. 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/TCAEU2097775.
Let It Happen (Live) [feat. Andrea Marie]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab705d67931a3dd7d4f3b1fd52c6cf900da857e2a576b173e3981b786930f7c8. 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/QMDES1400075.
You're All Around Me (Spontaneous) [Live] (feat. Andrea Marie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ae5c512781da840917917c40a34258f8b1c531b8e9ad73d858f3b8733b7024. 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/QMDES1400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3554a767ae1c008eb33f05248eb96ae793be98452cc623cab795bfe028a68dae. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMDES1800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87436143a1c6d4dc80cc0368e6412e9cfa01dea9557454cf2dbb927f6b77b88. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMDES1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d703a6fa0826482cc2367c359182d69cc31800e1b18237e5be4a83e978d89e1. 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/QMDES1800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9790ec74a4bafe4839885a355c34e68ffdf29b3f3f4a8db008d827e5abb7449. 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/QMDES1800007.
From the Start (Live) [feat. Andrea Marie]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4591ae48a850476c612b67ac657247c7ea3c5364496cbcce88638b1e31c6830f. 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/QMDES1600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60426c3d2f528f028ebb6b54f3519f18a20a0a3422ad132adbeacf8d09cc73b2. 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/TCAAX1195166.
Be Not Far (Remixed) [feat. Andrea Marie]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3898dfcde7e545f677884d81aefe0c3b9ada952ffb1d230496d552eabf0a206d. 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/TCACN1659815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd9ccb0a7d8f9a856ce86ef18e21c30ec3dfb7cc2e144055e533f2d12c6cdedb. 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/TCAAX1195158.