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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12632e10b580e99c2632b63df597536417e891061af4cfb8c4e0114f8f3820d8. 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/16b1d03b-a663-428a-bca4-6dddf1aadfd1.json and https://artists.proofprofile.net/proofs/artist/16b1d03b-a663-428a-bca4-6dddf1aadfd1.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x801508a405ad7511e58d65e96811202d6fb099090d4fbfe40c7335ad48afee1b. 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/TCABY1492294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ed2c3ae865431642ea195af1bfb029cc67a384f2594570ca75580ffacd9bed. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TCABY1492328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe64cfd752e480f355ffecc573329e2f61cc8aeed38332617cd1a3664403adc9. 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/TCACN1653368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a3b8baad334ffa3a505acd5e38525955e559c17c9e312903224ed85c4d02bc. 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/TCACN1653369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e61bfc2f74291c95c47305f4b8a977171519e2b099e028691c09bc67d754b6. 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/TCACN1653372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce0851391227c360d7f4b59a4d9e1451642b7ce06c24515e696abf83db8b3e5. 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/TCADE1727209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f28e63820d7f3665f5649aaee139967bc724d578e9d592d7b442148b1c65d3d. 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/TCADE1727216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800c31a855525eedc0328d885d97cb2dcc1c690c1d2b3f50db930749237b23b7. 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/TCADE1727220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8cd2b8678efcce852188936e4e4fdabd3116a28cfd65f23c0dc91ee51987e1. 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/TCADE1727226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ab33ed113bf595acd1e1308150e3fdb7eb37fe986d36ab8ea08f81e9b8a73d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/TCADE1727237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c613f799c97a0bf4a0bef06f77150543bf13c0f439e8c4483caa947e0cd6dd6. 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/TCAEO1912410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e62f0705bd8102ae3f669596581a618fe2ed1adbb08169451a09d28985be94. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/TCAEO1912445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa490f4562554a1f11785f018e4707938320ec0f1342b9dd474111fef2d9b54ef. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TCAEO1912378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c34809ecce839d008adcd89b95a42f1f5ad69d55319c3e20f81975e88c7092. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEO1912399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5773a85b813486441065e417dcd5cc58dc0d7fb3df37b4e16d3693b872c6470f. 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/TCAEO1912413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf732cb8de028f8182d1fa68c8c0093e70e1b0b24e59c621f0d4a9f12ae079f8. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TCAEO1912415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d90b0b0a31e7d20c5eb0a3c7f665ad365c1bbf69883d1e807ba1d1a7b85968. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEO1912490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4880a97094726006b2075a6b6c345fa94871dfc6b1a4dd2c4b8b9c0f90569171. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZDMQ2350109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10128514ceabbf13f9d6c2e880095b9400383ec5bba716fe8bf6e67be6683e21. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZDMQ2350112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a660b86680b39f2840a9e95a715146d59a266888974d4f86e1da9552b35c557. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZDMQ2050235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b00784170a28b0ff71f3a62c31a164d83929ad67d5c6a8e8c25bd5182ca5cd3. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZDMQ2050239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663be8c514834093b711db22e39be505814f8c89283fb477aa845c9b0b9d9c9e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZDMQ2050240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7688390ea63eae6c855639acb38c06d6749a901f7bce8db83ab0e2811d1ca21. 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/QZDMQ2350110.
Undeniable / I See You Runnin' / A Brothers Song
Your Love, My Knots / Frozen Moon / B Uno (Demos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a42c31bcfba9e2dc7293e9fef83c3ffee04a835193726754043dbbdc6d82ae9. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/QZDMQ2350115.
Colemine Records Presents: Brighter Days Ahead
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa490f4562554a1f11785f018e4707938320ec0f1342b9dd474111fef2d9b54ef. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/TCAEO1912378.