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 0xe12bfeac1a8e307530ef35cfefc8a55f8859de99fa10bda09e5e40b04d3b501b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d776aa1-863a-43f5-b21e-00ee17091c1d.json and https://artists.proofprofile.net/proofs/artist/6d776aa1-863a-43f5-b21e-00ee17091c1d.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 0xff7e9bd8ae50eb351d37282ff5f6c1c9063d2fc8c74b90c58a5408422b98552a. 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/QZK6M2209182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2eeff1b9701e78e650e49f56abecee06cef575be51108cb019fdd4345d9e37. 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/QZPLR2209125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e357cc11499c3f2c5ea50c22480c07043518526db02f8ee7b2deea3d5341147. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZFZ42447835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ef7ea2412d165884a643b364eb7e1a3c17e1152fd76dbdcf53d91e9151c39a. 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/QZFZ42447844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1cd58040bd0b0940b893615b34572292ad352616a8b4c4a286bb534c15c28cd. 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/QZFZ42447846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4449427f5acf7605ce6993e5af1969905ac64b1689201d6b9e0240d371a0dd02. 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/QZFZ42447847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1152ca45dfd96c188c8c56ce44aef2c9f74ec725ec80c8780ec0565042882f8d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN32434382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe734a643131ca8c4befe413c516f9b8098d0949e0b21daa395ae0e3473a1181a. 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/QZHN32434393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97da3dbd8460ed2b779fdba37b094763a8db8708d7c1f28a7ec289e6b6fbf1c. 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/QZHN32434396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe906538d6bd856bc1a67ca96d336154ef520015881fe3ea59aeb3aaee9c75c46. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHN32434397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e6ce5e6df75dded1e15934202af5d4088d3cad18491ab922984e5474146e20. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZES52394520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde578cf2bd8f660cfd66f4e916ea8d30f5197e68f4e9d4bd16728e9662af7c6f. 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/QZES52394523.
a newsheader of an inconvenient altercation in the club on a weekday afternoon somewhere in alabama.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f4a278dee2d716ac1d413490a8bea067cdc8db0d7fb081f79db0bd228979fe. 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/QZES52394529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0306c9a1f1356a20d27b85c8c1cd8eba4f6e5fe0854af51a29cd5648ccfb3cc3. 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/QZES52394530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24619c33b2f8652b52003bba982ec6baa2a5f74d70c635179eb509986ab7348. 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/QZES52394532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc669c299fb3747c4a809f0504f184b2c160b6533a3b99c12ef3befde560c76de. 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/QZES52394533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956af9c788f4ccc6c5fb30eb92a054418028d1fbd4a259322f2e832e2ed1675b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZK6F2351223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebdb3a0d2cc658d0c8d9511398141956f69d52d117fc2c0cc62a67cf1fd8221. 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/QZMEQ2204896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5186ac125f4fdaafb6809c3a193dcb7674dda7bc4f4e1188652b6df41478950b. 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/QZNWZ2370395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293af0b4c4632f40e83350fbda682e67ae47aced095f1c73133fd1981f6768da. 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/QZRP52489705.