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 0x99f3a9f832a50b345fc87f381060b827462926475b915e5ea6c9cb7b6351402f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0797e77c-31af-4223-8478-2b1669ec7f41.json and https://artists.proofprofile.net/proofs/artist/0797e77c-31af-4223-8478-2b1669ec7f41.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 0xa21af1f2176be60db0e9928e4c451abc8f660f2a7127cc9a6c5493c46b8e6755. 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/QZTAW2224507.
RWBY, Vol. 9 (Original Soundtrack from the Rooster Teeth Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e963f612387af5df9fb1b09140511febe7e7fd77f010da347ff2c71d3187c5f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAHG2342128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a6e4c5572f856a136b3e93646411987cfd2febbc3156ba932d81abfd4467742. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAHG2342153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fde4967fe1b341dd8310f6cfb7b43e5bba762a51c8cadc0d51c76c96f918071. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAHG2342192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d60b6d43ce4a96e2ec7d791ad194deb9b614f70cebb0b476714cd14395bd0f. 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/TCAHG2342199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c67807d617dd83fc75d5b186daa58f16568941fde991e82d410a3a1a003bf4. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:12Z), 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/TCAHG2342340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d04bee47b22fc91e60368518a14eac67d163387da48c7ffa680c43a3a93313b. 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/TCAHG2342369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f409e5a09b654bc6274460fc3b72c32e74e1529f4c6d2a8f64cc9afb5bd2e10. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCAHG2342463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf302142c699dda317fa037f983daf451addd30ece0485ff2d4567aa11ed10400. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCAHG2342477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c85d5fa3c22cd344d8e33df82caecf0692ccd774c31827244769841a969452b. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/TCAHG2342591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37441729517e77271830040dc80e8db6687ab6eb5ef827b8c48aa6f09ed7790. 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/TCAHG2342598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2140861aa787fb8b038076782042ec7af6ddf3a44a852fe846561d253a350acf. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZES82422138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5b9d4732ccbd43372e2e00b871170638497fba4ab8fe901ec2beeec4c0a8a7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZFYX2442650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f95803dcde7e57efdfb28a67bfa70708ba157221785e21a10cdf8a69b15177a. 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/QZES82422139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe3e95fc0895e1e9561cee2ce8da134e4a565d92bca6e1b55d7df2c84ac80bf. 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/QZES82422140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c4d3cbe96d7ae0a7205a2e45dd8b22fe47afdc0d1812195a4bfd1b7c584ae8. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZES82422141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d5e61c76c7d9ef464cd7a1e6ed2765b009a9140cbf3cea59c960cb02fa790d. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES82422142.
The Shattered Hymns, Vol. 1 (Original TDX Soundtrack)