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 0x34277446da0d1da2bea4c523cb31dd606154e8b8a657af70901f6f0bfdf2f120. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db5dad13-0cb8-44cf-9eaf-594c330d9803.json and https://artists.proofprofile.net/proofs/artist/db5dad13-0cb8-44cf-9eaf-594c330d9803.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
½ Decade: A 5-Year Retrospective, Pt. 1 (DJ Mix)
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 0xf12677d5bb0915b2dbe01bd66568d6de34f4a983443782329c491d2c0db9e748. 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/UKR6V2381235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010653727761c08f4f7f18b290a4a40ac4d8623c98bb40f4acf30ed4817625d0. 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/US83Z2109144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b5d1490bcc2ee260bb77f297f11ef6d03b29b62dab472165dfdb3a633bd172. 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/US83Z2109146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a64ffd8f7a0a14a1203bf200435442f359a6df0914a54c47c77e120ae655276. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z1797915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf760eb078b53b48476d588e31356b6973d06f2d2f077a68f8815c5873c6a89df. 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/US83Z1817449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf213816c806b93d2a8f703b115357b6a7d7ac1af1123fd863f45321acb6ecaa2. 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/US83Z1817450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ba7316505603dca485596c7de74a5b73acf2993bcfa5ca87b8efc4d06e427e. 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/US83Z1817451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1169f552f5f64cbb9326767f729f31b0442984f8cc8f7a30d9d9ce0d9cbdc120. 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/US83Z1817452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd65cd9b75dd14b6c31b59bc26b1795a78a5099ca04c08172b91aa936d795e4. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US83Z1817448.
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 0xb7cee79f0724cd0627f4f89154cb4fa4a2856aebf19f7e6f20b8b6e649f01f67. 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/US83Z1796708.
Coral Reef - Sixthsense, Andrew Frenir & DTALM Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd32aaaf27d9870dd6a3732c3adc0a0a393a6dd4ea4f0fabe85455eced5e005. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z2147591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811c298ba0f85235ff7f7716429f6b3e709afe003da330050de53a58f6c206fa. 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/US83Z2147595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ab00e6365645c7b6ec31070503ef68d966dc7657ff29f623175a62aeb12b53. 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/US83Z2147588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2cf14ceaf181b73770d108ae7dff92a2ff8d906b8ab685ab697bc023ddac18. 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/US83Z2147586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d80fbaec16114f622070c70cc55e76bea71f64111f3ecac2888d7d922d9fc5f. 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/US83Z2147584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa60f56efcedb0bb7978207f69a089ab41cae386146c55b2b603447ba6ea7679. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/US83Z2147590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bdd918c327859143c0473759ce8b19e5bdf225c64cb292100c9b2d29acc426. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z1786843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ae57753fdc07aeba9b76b7114f1ebe0194aab4f4dc0efb0540c010d532e971. 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/US83Z1832914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddfa74fcb466493ab3defbc9728feacb7860a1b7d539a909abed849f3844f36e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US83Z1832916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3bb259e387c1d22079c3d4dccd86d86fd3eecce3fd574c81dd109781e4d14d. 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/US83Z1832917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32ab2d48b96a021c437b9805c1091f909514c0cc403293fda99fd97edc7c1f2. 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/US83Z1900637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443a339fdaaaf8efb07432e4decbd39d3c0b749c8c0a992dad8bc6400fef3391. 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/US83Z1780213.
The Sun Also Rises - Winterya's Mixed Feelings Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a79b21d17ffe1fca35589fdf7d475ca088da9456981e8b5231c26a023d853fc. 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/UKACT1840144.