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 0xfe2eff926430a0289f385ff0dd962127ceac552191f887bb9012beaadcc9b703. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4763592-fc31-4788-b22f-03855bfc040b.json and https://artists.proofprofile.net/proofs/artist/a4763592-fc31-4788-b22f-03855bfc040b.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 0xda2b1df71fd7f81c29269f38eb97126c6ec990cf57808e1c8e65f51f63370cf5. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/USA2P2040709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b6a266131a2ac077f245ddb02da0fd0daa56d34caff4cfb1803af5fffc7501. 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/USA2P2040711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec005b3a553ea0872e4c42c654fb19f2b87d5d789815f88b9290b1547763f458. 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/USA2P2040712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c43fa3ff4febcde329eb42c80d6592f882fe43ca9c8d94b86360cdd0a370fc. 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/USA2P2040715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1a0fc7a4494e32d7708a6b676d2b307f05a22cad4b4992b6dbdaf9097831325. 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/USA2P2040719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb45dbd31fac9355b4bb77da6b392a8f3b3e37e184492d2856900cd053f612c. 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/USA2P2040720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fad49ec56aa5f74c81d0518c049d69eb5ffd10825100466711703906229eea. 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/USA2P2040722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa340a045ae854363cafcf4418092372a90bfda93e56c25c60b11f425da9b048. 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/USA2P2040724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb475c5d3deac0408365d372d15fd50e8249d9a2310c05f5d91878ea99c353373. 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/USA2P2040725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b585cdcfc43115e7e0996b22ad4e84f514ba29a662874de62d966cf963738a. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USA2P2040714.
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
You're Gonna Hear from Me (Live) (Version 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b213dd949a2c9a669894148e328cec4cb2579e162ca0a5f65c937d58bd1560f. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USA2P2040710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb956e8108414de22280e4ac0d893ce72d9b842edaf409d52cd5b9dac0ef6667. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USA2P2040713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2e8ec89687a20cc46a347f6bbf8be2d7e798deb0309eb7ffc3e30483ffebfd. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/USA2P2040716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed6017ac9cac4a44f31797adca7a92fb62d22e68d7e08f6fc5198f947b820ef. 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/USA2P2040717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd0a7d388539e2ac1af28e28617d959db24f73bfc7ec118340a49f6e9b9e813. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P2040718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46706097829f269fb80cba24f8f4301bc665408792a2ffcb27833e66c972e21e. 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/USA2P2040721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabc4b796c0d077e5299010ba313d9eb6381da7c5de52d43cec000ff7105be90. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P2040728.
You're Gonna Hear from Me (Live) (Version 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00abe8a7f81cc2eac57d86dc1ae4d02e102ac891e7e6bf1b4eea879d0a211566. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USA2P2040723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3500e2c6c45a3adfa9a04d6f066258ab72a9ee3e6f3104a92f7c6c4a393528. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USA2P2040726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79ecf7a6c3eeb8f628bbf434e11dbfc2758eefe988ae302251f0b30d5a54d57. 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/USA2P2040727.