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 0x4f9c0a0dcac42e282e4b2f8740f86aa29db1dec71e282ffc2e163ca9a0094141. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1009a155-a2b2-47a6-bf10-5dd228e08ded.json and https://artists.proofprofile.net/proofs/artist/1009a155-a2b2-47a6-bf10-5dd228e08ded.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 0xcacb7d62f68af3243be8f4adfa57ef7321ca696aa3335ae9e3cb5af6dcc9e698. 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/DEAR42269452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24415e3531a7e7fb162aafcecc307609da06e12bd5c3723d5d61fccfb803e2e4. 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/DEAR42250327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb00f0f488071e0b19904c8508ea820185626eaab86cc9f8e9f61935cca6a0d1. 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/DEAR42244017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dcfd20a61e7a999deb8bcec937a5e4aea5aa2013bcef1028f4de753feb97b2. 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/DEAR42227938.
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 0x1729846da96d624e6788cf0b21f485d5eb0b342a3b17a45abef9be8c324b4e38. 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/DEAR42288713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ed1331aae934f981f04135b586052ad424317f5168b7ff43a841c50315b2e1. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEAR42229037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76553bb96ba2079e03c7b136afb33df2b6539a3aa39248c447eb86be3c795539. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DEAR42219359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f0b96c1b7aa1cb769bdf0c530ae50991ff300809e02ce0076978a9e39298ba. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEAR42268336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496994fb152efe8bbf82f6b295bb79ebeebe70ca1ac24c57144b9d1041a9b985. 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/DEAR42260828.
The She-Wolf and the Twins Are History and Fantasy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5437d569bd3e555a5787d03bd0f5f77b0554075bac27d3bdbabb046d6050bb. 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/DEAR42235443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebcd614abdab1046777132337e74b95aefa6b555428efc60bee128e77f003e9. 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/DEAR42245502.
If You Want to Be with Me Its Your Choice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071d3e256f7c074307b7371c085ddba63a4f0f867b50ff085f355cafd479870b. 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/DEAR42252886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e448051d642e237b4128e1cf9aba48a0c786ba526d492db2121ed05f33f7c85. 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/DEAR42267237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2377116f137657c01c87d8e02e08a015d6ccb7ae24bc35174ae2e4bb9762d59. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:03:38Z), 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/DEAR42227464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875b78e5ae13a1a116dad40da78c38773e3049e4f311b055d46b6ff9f3e91c03. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEAR42282138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c360d7dd563d43a8c085391c7d9234cf5816dbd07cd7a74fcd7e5cbcabadb5. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEAR42286267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059c52af97e148264542d3265de649e16262ffcfb98662c9fececb1f1de7f4e9. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEAR42237254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b5378e0bf14de5f5f35b5d6d2c9a67f7db077e2c9c9da4b453f155ad8a7b78. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/DEAR42226607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f0519a555277fcfc72663cd7f0d647a6f0e8a156f616e5519998ce1ba1c779. 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/DEAR42260763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bf486f03fbbd30462745f7eb131e9c07ad70d3375cc0b022bc10f8064e3893. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEAR42293889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f16f3a43619b9aa44eda29970812849a206bb961a4c6bd5f7a6c86eae38323. 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/DEAR42210652.