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 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 0x915eb8df924d41a4be93651ba705a4f14d3fb6fa49761d54117e5289f92fd340. 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/3128c9fe-5601-4cf9-97c6-109babc0eb01.json and https://artists.proofprofile.net/proofs/artist/3128c9fe-5601-4cf9-97c6-109babc0eb01.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 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 0x1fa858aa1ac2ecb8ccd62d740d7d36c75f931858d61e7405ef9000379707474c. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/UKXN21963324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb129b55453557dc09b9deaeb51af25eca171105be02aa772f03fbc09a1e26e08. 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/UKXN22144232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1011ac4a940c6e03e80f39fa2fb66efcb551aff39a464407a9f2963c0df82db8. 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/UKXN22144245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2cec28344c2a0ce4b6dff782f2f2f2ccce007d98ae2c7e008bafb3136145894. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/UKXN22144246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d7fad171440916c29fb6327e1f54fb759486bd02f094cbaa8ff18fead6b7365. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKXN22144247.
Proverbs 3: I Will Trust You with All My Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9df21e5eb822d8b4a65a722a2c004d4eae6169f19cce2ea0eb07c77a57e1c47. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/GX53U2045322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab05eebd71fb2bae11c0f3f1662ffc93c13b0f8c37fe997e146baf69a3126c60. 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/GX53U2045324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf334af6441c6e007ed4d295c01a3fb45f677c147774d98c1648bbbd974e893b3. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBLFP2251105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97b9fa6ac937deab106e885243e47ce594ef6e7079b2460a7b033e820c270b9. 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/GBLFP2251102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92fdcf391d61082679484e58b3e307751f6bacfd84e496c569984fb0d42709. 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/GBLFP2251099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c0846f3bd0c7e2f4ad74a13fab55d4069ab1dabc49e2642eeab4a9b52a3c4f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/GBLFP2251101.
He That Trains My Hands to War - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f1b9e588befa5ab7121ce4d82f47b1f6fec7a53454cdf0853343a1f9b5a613. 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/GBLFP2251104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475510117f121f79b1e9b605ef340664b78a32c110ceb16a3b109f063c17447b. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/GBLFP2251098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecbe4f49f32b54432fb97a34c279912c7365ce683f2cd6aa79b8dc2f811cce8. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBLFP2251103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e63798b6cf0bcf63162e66c69a4122c7670d27a48f3d5949c14e160f1f986a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBLFP2251100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c9ddda199af2ba83f3875ea0063e996951ab5ca42bde1a3464fad9a6dbec9a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/GX3Q92371922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec78fb169f9755e237fe80b5d56bab87afd25bf35e46b1565a5a3455b6b468ee. 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/GBLFP2474341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe642948ab0e1b6677567d3dcc734358f2368ba8201165b446ced6983f3f9c1ab. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/GBLFP2474342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7006c15538affa7740e68979d729fef03644d7af38e818c0048fc24b14fb06b7. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/GXF9Q2437781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad12e9433d138a68405e1a2e1e69849d24559faaed0ddf9fe78d110973f967e3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/UKXN22598559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b434087a068e7143d5756a04cd476e811257c8b06baa461abeb7cb24cb20279. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/UKXN22598556.
Prayer Cry for Mercy - Apostle Arome Osayi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe3532b7c396e3e5a86826110877c866c6562abc384d1d9ee1ba1d8799a00720. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBLFP2575066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f198d2441d719ae47195adde2ba5305ff4bb475fe7ba1d343e839f773c470f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USHM22535697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f55bc796cba4553bb341e3f5ae282e9669fd17f23433325151ed23e498d447. 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/QZDA82151803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e684b8d4133ab424c7d7374dc76d1581f2be037f5f0b3d673227a7790cacb3. 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/QZDA82151806.