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 0x6c7266013dccc7b57c7425de2e04c5be788bbfd023122c1509b0e6230896576a. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1b008e8-c62c-4db1-b026-12de9e9d9100.json and https://artists.proofprofile.net/proofs/artist/a1b008e8-c62c-4db1-b026-12de9e9d9100.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 0x46c275db63a5ab2dd5bcc9f4d5e462451a24050bf945c3fc11b08a0af9ee356d. 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/GBMFU0600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6929f5d20c4f7d9072a2f049bf2682744362029ae3404577cead20799bb13a1. 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/GBMFU0600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c386494b02ac792c40d02a7aa649e40417eca032a77e429a9c957dbb6db2d3. 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/GBMFU0600464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac276351e307cf3bf084fd3eb19073e75700574b5ab9952534ce12f4374ea275. 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/GBMFU0600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54b0a3913c060f74842c7dd2da743e3de5fdb1217ac3c4c379f9453f070e6b6. 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/GBMFU0600247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f340481a3e633c5c6204f54458432b3451fbcee2ae4ecaac6e5a8bb112b7a3a. 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/GBMFU0600251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63036b242f57eebb3797ee124a6a5f7b204cd8d7a624b822aaedcac82f0131d5. 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/GBMFU0600226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2377b9b25ca97d5972e1385231ea266110f2a98da4c0be239d9361911baffdb8. 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/GBMFU0600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d71df50d4ae8eb9b151643f734679f2208d882c039cfcd18f62be580ec201c6. 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/GBMFU0600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b8fad1268c694bc630ba5bd3556d845eef46774ed5a38940394b853b94324b. 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/GBMFU0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4ed1cbd862a4c489dca0bcca6d58a40622052a7555813097b0f859b28ae25f. 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/GBMFU0600413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b8fad1268c694bc630ba5bd3556d845eef46774ed5a38940394b853b94324b. 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/GBMFU0600145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x827be837d586f93a8336b2d80c46a16d8e22e3919ad9804bd105f4992bbbc00d. 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/GBMFU0600164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688df98374910c6d5f23b584c7550b8951255775cbd76b2d08c35824822819cc. 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/GBMFU0600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f7c377cf250d5918c04982d58631bd1398341a4cd9ee5d3be97a6c445712d8. 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/GBMFU0600153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c08bf7798b2b952427a33ce847bcc9b3fbff8d5eb701fa1344ca849a8a63d46. 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/GBMFU0600142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198d7a6dd626d29c7e458aa506bbd6089ca1d24bcf2a633412670b7e3f65c9a8. 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/GBMFU0600165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e713a0aa8554991d1ea2c3db3762c9e5bf4a01146e1ab31f66d4c759b20b6e. 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/GBMFU0600161.
I Don't Suppose I'll Get A Second Chance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48a4f9c23218fe431411455fd683eb384fc8d46e5a63f329c2177ca5964794df. 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/GBMFU0600150.