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 0x3de167957c956ee9b3378f9a9f0efe38102c71c9fc6f26f46915b24f5744734b. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb68a21f-88eb-412f-ac0b-9fcebebebc68.json and https://artists.proofprofile.net/proofs/artist/bb68a21f-88eb-412f-ac0b-9fcebebebc68.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 0x44e8761063d50d6fe6d63d9e57de838cb50c81cdb2d2cb779ad429ad81e34f3b. 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/UKLDY2100202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63dc8e66b313547db8d69c37b297ab55947cd99eac5d9e71cc56f504460bb4b4. 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/UKLDY2100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a0cb46e4312429c0a00d15152b51f0ad7d8ea149c5aa9dd37259908d3ebd67. 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/UKLDY2100204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146e2658d8fd78e6ecde6747973684acef363fea57da629649cbb394110b00f6. 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/UKLDY2100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e2b78b8e214c200247861346dd5d8a54cb5164028e871c1187b2a2311ff4d2. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/UKLDY2100206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc748d361c75e09a3783249d4d8d542c682ab2715d0954060733e9ee7e0be00ce. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:31:01Z), 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/UKLDY2100207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b91fedacb8fd892714342fd599cb8debc0c79873c019a46aa28650c38307cb5. 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/UKLDY2100209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975eb9c3b7990ecdae267466b70ecfd4e65cade77b196e604d673e0fc6cfe916. 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/UKLDY2100213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf917e6d0c7c910f63f119a47ee2f7b145d4152a64ea59ebfd6ad33e0b7f1ee8d. 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/UKLDY2100214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe706f07b615f76f00f66549a5b5bf908896edd6ccbbb939b2c0d3a213f51d2db. 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/UKLDY2100201.
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 0xc69409c8cd10d9f677ce3cd745cfef9faa22e8fbeb2aab13305f0edff1845c17. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/UKLDY2100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b283dc1723416e593acdd87910a7c66dbc8fc8786987699cd4ee61ef6f71ad. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/UKLDY2100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82aa32ec1c5c0c2d6ed34b69bfc16a00c771d4e2e3645b8be6b8050cdd2118e8. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/UKLDY2100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3df71785358d6a5a5d08e8c99dd2a51a8ec485f473aa09c19dd61df9086f600. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/UKLDY2100212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1af5b4163867abc84e1c57cc70f726e8edffbad26ae1d91a7d120f47a89d1f. 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/UKLDY2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7c9ea95b211691aa194212985557c119cc0544e3ff9a3cd909d8e0204cb1b3. 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/UKLDY2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73274997517c72491bbb37a53a6787bf6ce1bbdbf6ffe78be1b17d8b76b8d280. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/UKLDY2000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42547250075b3f934d9229bebe39c1cec1d338f1315461b61bb804f0660399b3. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/UKLDY2000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89266c2fa2e53ab4e67ab56d905388617b61b19b5c51db4011758043a444283b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/UKLDY2000106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d77be0a88bd9e4f426942dbd81f1e02084f6e569fe71b05980ccaec98b6c08. 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/UKLDY2000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4739662d0ad590c8b6f8bdc9024df5bf8df4f677290091c8237e88ab0c363556. 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/USDHM2000566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154ecc6a1f5e4b87222a8734f5b9e048a60a45c95828f8c49a2d3ef2b54d29b7. 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/USDHM2000569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e55449cc742e0d49738bd8b85de0cba1ecc64ac0c49c2671a732ca804292aab. 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/USDHM2000573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc2ba20fbf603b41f889d8c6fc37331c3796b94cf0248cd4ec3b5f951659c22c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USDHM2000567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f0da6c315e668b2bbcf172ac7d7b4da2407848c5055956fc02b36974291aca6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USDHM2000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54eb674385588c4c644b8183fa7b01cb361676ffa4855ecea4bf205fdfbbdd55. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USDHM2000570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bd65794140159d6d07dc9d62338439453360b9a17eb8843d692f8040b11f1b. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USDHM2000571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f29af4c8bfdf981a38dbfff244d81b5863547aef6898929caf68c5dabb91bb. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USDHM2000572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a72094f575d5f9d0b7dcd0461e91d874b2d7c48676751dd2e7f6d753f3f101. 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/UKLDY1900103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad6d0a7c09cc856cd6b37b613300f96909676cf0ac4656f476cf96d4cc28eac. 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/UKLDY1900108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039d2e655ad78b786745dc6079376dab34f5dd850ead49cb0f6d0505f5fd7b41. 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/UKLDY1900110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bdc70ac3ee354784928f269f34279edb17dc4a67e0b22e989dd96f9a67c0890. 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/UKLDY1900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26feca50ec0430c6935712a0ce0d6e3a112b40a908262c74cf2236ebb5ceaa0b. 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/UKLDY1900112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac58d72d10a81ce69a29a55945caa456e18bae0ee6216e7fd2d6f5223e59f79. 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/UKLDY2100102.
Come Weary Souls (Live at Gorgie Mission)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf59c8b5566d2ff31f0e89ff8e343ca31839404bead3d5291f334d3b770c3d91. 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/UKLDY2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0ed00f80a8b556f9c7ee5f8cf8c534c8e436f81ca2ac205fb86a55fddd14c7. 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/UKLDY2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107c52906f77262f7b9c6dabe0e70b77a5914e893aa3801a0f3accb7491463a4. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/UKLDY2100002.