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 0xf9ef30157365ad879932b49091d734420131afafca16539c768626facd5020b2. 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/ffb06063-8867-48f0-a46d-d5a67e51f70b.json and https://artists.proofprofile.net/proofs/artist/ffb06063-8867-48f0-a46d-d5a67e51f70b.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 0xb370dfd5b731dbd5d875d01b7dcd8766f45dbc167419a5c20f6f5e0fd4dc7663. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES71G2333106.
Aut Viam Inveniam Aut Faciam (Split w/ F.A.V.L.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1218d5dd8b9ae2586eeb0a9f12b5aa6e120edf5865b5c5f3a11e95e4a0bb99. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/ES71G2333098.
False Gestures (Aut Viam Inveniam Aut Faciam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38dd05e84e21b344a1eb2c21e517155425b7970b9b9536722a61c7475e03267. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHM81428665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b5066265db461eb93b27431107f323d8de5c4d63f37f7d33cafe3736178d52. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81428667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f067ecbf4da28a739b68c8375dcdc27c64d3922297dde36f6f3eba9f633f3c6. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USHM81428670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37dbda0e244b66b6c3782a5c657c1f037fb3d1a2e5fabf388f68366a2c51476. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81428672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea150ffb9beb8c90b4e583024d96f92560533f8e6602c2277048d5fd848abf4. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM81428673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fc9004539ae437f3ecc010461487f5dad7a20fbeeb7e080b226a15996016ba. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USHM81428674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6281e179c7374e6f0e7e1655ce153064f0a04391539e5428de8136fb61e3bc. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USHM81428676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbc100a059569e0a93e859fe7d416fea7cdcdce540b01b7ab36a297924066bc. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USCGH1586229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0ac3c8558ca9ef9abae732c2b5bc3f88fbf4bb5975aff909200945ef8b83d6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCGH1586232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9920f6dbfbfd4f7b2d62fe223a12385391b7b2f419c16e2363e19d4e2b0bc76a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:08:04Z), 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/USCGH1586233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb2338ea86faf5148f81a5a6e05992d5ace1490bbc58d3f999795e6cd71af5d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1586234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33047c6aea2f853ce2e3c32b81791e7589f561624ce4740078bdad2ead2a6fcd. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T16:58:58Z), 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/DEVF41600182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f73515496e469df676678dea570f2c01c7c0be7e8d138221a2b4207de5fa93. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:00:40Z), 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/DEVF41600183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3df6a6bc6b235b001ea8c9b2a4ce748ea9ea2aec946a400d9b1d585ceb67ff. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:10Z), 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/DEVF41600184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581a22f627c3922b6c7a609f51fd9c27eee34c9ef7e7be2a0a8b3b38e16c0f26. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEVF41600185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c03014dcab6539d0ce712ada5d86722d3eb04a0a35085f1600cf3214836cd3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEVF41600186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100392a31a12d53ab42c39b5f188463188a1441cc65d8a919ece9c060c01e828. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZDA71959067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3090b2a3bc27bdc7355c42b775c0ffa46bd667447c3b70a1af480f3e259ab0df. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/QZDA71959068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a1f969f6dda9e86092bed31bc61dff100d7a214261081a3d3ba50d0be9a98f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:01:26Z), 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/ES71G2008853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa922c019904f1892aafd39c1fecc3f437b50f1177f6db5091ff188c93c048702. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G2008850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5c3ef1f385e6e017e26d9e56074675a200d09b2ac65e874bd2f3f15356fefa. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:57:08Z), 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/ES71G2008851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddda5878789e47570e9e2403de988c326c4f49ccaecb43ae949aa01780d5655. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G2008852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb16949184046930d8762876ced7d58a29cdf9313e1c1666a93824969bf4d2f37. Chain 2 (Bitcoin): anchored in block 957544 (2026-07-11T09:08:48Z), 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/ES71G2008856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656d9336d21abdb06c92181c6ba6522df7ec56958b6d3ae5c806a0b4d0d811c2. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ES71G2008857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1db688b56635c1f06beb6f94069d710c53019dffa9562362acbfb8112a56d8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES71G2008858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1087c86f08bbc831153648471efa017528bb0a5bad2ddaecae3d1a8b28a80cd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES71G2008861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc866ece7b58b842952faa12aa1eee6e3a4dc5197329975ce24f54e6eeb1a4f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:55:05Z), 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/ES71G2410054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a11ff327cdbb7d43c9d820455de564213bc7b4e3c787121eee02477c7dc1f7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/ES71G2410050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8292648870271f5da427b20b1fb32e6db198e5861ce3d8bd5f6190e79f338e41. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES71G2410051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd13f78889b7a980eb92e21b58ca06cf82a0fc7777eea170e1441951a800df9. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:43Z), 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/ES71G2410049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db5fb9a7ebe28f31752d1b78d3118ee69caabd0fc0fd59eea159199c33726f3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES71G2410052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd802dfe0c53c4b9cddf89c11a59e5f7646da15ac2fcf1e449d9d35bcc14c0da1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES71G2410053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc866ece7b58b842952faa12aa1eee6e3a4dc5197329975ce24f54e6eeb1a4f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:27:13Z), 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/ES71G2410054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8a26c6904f72f41c6ebb081a72dea108125e1fb863dfb4972fa92607868556. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES71G2410056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bf0d07e2f643d5f1ddc537c827dac7d5ec68d40d18cccf1f3dc68e499bddce. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES71G2410055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8448082360e5595cdc97542f2492c0df3e3f58ce46f0b181a669f9f9818560f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES71G2410057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd472805c78e5f13bfcd1143251e80835310ec2d807ee75099f025d5747e67ed9. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/ES71G2410058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4475c2338e8e40acfc1002ef9391b9ff9d44c8309563f43e215ee00539f81fc. 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/USYB32026306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d807a87615c30f133f94f716849cefd5829c862346e591c2df85b53763f321. 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/ES71G2105562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619d9c7f81f6bcddcb2861405f1d3ebc5c6429561c85f3341146435fd5e93e1d. 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/USYB32026313.
A Tribute to Oxymoron - Fuck the Tributes Here's Our Noize...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fc3c653432f3c7176e3c36756f1a16eccfa91dae9d1d3fb2b833d5cb68bb40. 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/DEPI81800106.
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