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 0x494100ccef0e0457cbf4034dc15b6a72bbe78543d03057660f080f8e47a48a4c. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7e8c8225-66ed-46a7-bdab-c4cd91e5c70a.json and https://artists.proofprofile.net/proofs/artist/7e8c8225-66ed-46a7-bdab-c4cd91e5c70a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dry Bar Comedy Presents Tim Young: What World Is This?
Dry Bar Comedy Presents: What World Is This?
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 0x2ac475bf3745dc10845604967dbfd9b140474ac7abd719cc90f39c99f8098244. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ8LD1944882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e0c528c557ee04034a5397d36e96523b7e32f32d1dca12bd48d8d4778f57a7. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZ8LD1944883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8defbf0bc619969078b946b20631d787a46640785faebd399b28ab203fbf691c. 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/QZ8LD1944884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc130d03f78d7c0b6bab23dfeebb73c2709939698124645242eb3990aa991b8cd. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:10:55Z), 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/QZ8LD1944885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5faf32311342f751dcb044f10b644d831c9899f9c93db3b574a296ac6b54a73f. 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/QZ8LD1944886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723660e5294693ca0c533a7bbf6a35c008ea5dbe6d4f040c918cdce4f38a096e. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:55:28Z), 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/QZ8LD1944887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a82e67e0d139a3d9d79886dda1ce8bf94f07b208ec94acffaa514d2120c922. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:03:19Z), 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/QZ8LD1944888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7447b401b20f6a88fd71e0297be4c49c7a2ca51c495a24bdd56d8709847b1d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ8LD1944889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb083b7f5fe7eeba8c17735440f772d2f697b6869cf1c1401316289bb175461. 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/QZ8LD1944890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ab9b4acb5b1fa9f8b9d521b2771c9de73fc62638f26a6c26353574609857d5. 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/QZ8LD1944891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da8658a33c2f01a39c257cb42aa06e636906bd9cec0cacf979710a312cd8594. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZ8LD1944892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc1cdedcb2b46dc031c833361d10523ca9ca6c09bb4c0377c1258f290cf3926. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:49:35Z), 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/QZ8LD1944893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadec5d937b4c4c1288ba0a62ffbe7a65ae49db121a76f7d238da31ec09878a6. 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/QZ8LD1944894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e78e5c4ec57e747916a618f2a8792746b7bcb047bff6d0a257c7cf4f86bdec3. 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/QZ8LD1944895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11a8e1a84c440b61079e3b222b4b51a5e31c4c56ddcdb237ed811ebbe9d5722. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ8LD1944896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9281d409e6aa53594790ce4c1cb8bebb276f96d65e6892470a0c1fc619d2f6. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZ8LD1944897.