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 0xd6e29d772b5810eb58ff4991467e9060240835677a7cb36b2b2b52cb3fb60ef8. 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/64cdf6ba-2aca-4377-84fb-166f9b50aa62.json and https://artists.proofprofile.net/proofs/artist/64cdf6ba-2aca-4377-84fb-166f9b50aa62.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 0xe53e9a6c0dd9e9fdd1a54b1b288d1540f46bd124570c686cc131239662edf486. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USME31201100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad1a024c43607a67b50bbf9be6bc48892c93acf020d46d7b838c7b4001589f2e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:38:22Z), 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/USME31201105.
Triple Threat (feat. Julian Vaughn & Marcus Anderson)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ff81a4d3d2ea1c9b4846d82b4d94f44be1d2691456750b7ce57a1eb10833169. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:37:36Z), 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/USME31201106.
Please Don't Say No | Tim Bowman (featuring)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7473751af25cfba85abbe954f87049e350490d25ed054fd8d52430328194a31. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:56Z), 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/USME31201095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaaecec7d20d89ba4c80728cffa15a4fc311e06cb7c51a7eba766213981952b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/USME31201101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35330043cc897ff454d387b44c76c8c95c3627e548ffa79db5e7dae133ff02fd. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/USME31201103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25433a4f8aa9bfca54e9fc04b9dcb0a73be95f98788f125933969409c8234b2b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USME31500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7e67c851e3dca5170216f54f7a279d7bffd23ad236e312dfb3d525dc94a061. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/UK6BP1900237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0904dc6f80a66b8c6175fd2f8937106a37077311f21ec27c39f6e45750f8d88. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UK6BP1900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7e67c851e3dca5170216f54f7a279d7bffd23ad236e312dfb3d525dc94a061. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/UK6BP1900237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0904dc6f80a66b8c6175fd2f8937106a37077311f21ec27c39f6e45750f8d88. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/UK6BP1900238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38a794e2b5eb9184034ced10db2d0e63e353ba25e6d266040d458c24a51fd394. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UK6BP1900239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c71d0bb0baf3882f6e881b01e66685b19913933e75422b003409f1bbd8f27a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/UK6BP2100368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7673cf201491369ff82056123dcf4ef1c15f0ad4fc1a24d4bab35f5bdf513cb. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/UK6BP2300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a25e8d0dfcfa010a190a1682698cd2e0ccf2cda96fa509e31ad52d12f024cf. 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/UK6BP2500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a25e8d0dfcfa010a190a1682698cd2e0ccf2cda96fa509e31ad52d12f024cf. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/UK6BP2500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f337bc4cafc3a5478d5b3d36858b30f7ae40211819405ddaa4774307f846a54. 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/QM6P41428562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5514dec29eac3d228e08594b19967ed29a03867799309a76781bc13a23ca61. 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/QM4TX1590989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b33a489722edffc0de2029b80be9382264b93d335b0cd0cf3c43d5275aa5c8. 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/QM4TW1832387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a02ee1e92ec4b983cf6eb00b123918cc015437fb5e752ded6ed431987b311. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QMDA61501411.