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 0x7aa901859e457ecfd4bf6b59a868e1a442a4fc91cadfea5a1a0dd9a801498f6f. 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/ccb6b5d5-dffe-4cf0-848f-3e2e618d26b8.json and https://artists.proofprofile.net/proofs/artist/ccb6b5d5-dffe-4cf0-848f-3e2e618d26b8.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 0x4872bce1a9ba6c76f40b6d4ff06c4f6a81057f34e08afa805db55130d7d4ac0f. 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/USUG12400373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aeb845466d4eaa9bdd2c2ec464f7664ce7a4688b0d98cbf9092ca3b2fce407c. 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/USUM72111288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb17502378276a28c2071842e5df62fb6128750f84b242cff4a6f7f6e8da0dd. 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/USUM72402998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ee90ff75d68ddd0881c6985f0e0c66e3deb602b78ead79a52665ada997eca3. 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/USUG12202195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacd2a49219fc3894f2524d0d6e8d21ddd76d1b22f6e8e2a8c89e867b3897194. 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/NLRD52017098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c9baf82b002bd947b279287aa8ff283e1c734dc8f5b8a598f8664bcb07818e. 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/USUG12203980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb00983e0c8f9e633bc5ebbefae607b26cc24a26977be380786f07ac8b820d728. 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/USUG12106645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8086adf36990d6823625a79648a231a1e52012aebaa08938ca8913e4fdc1b33d. 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/USFF10600079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874942d1f711b8e78dd1722de717baca30be36480ab38353cc2e04d47663de78. 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/USUG11902683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a84f0c1f6ee4a1ce455fb83ba1f8c94c30e404ccee62682fcab2914a70efca6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USCGJ2471646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02ea7660485b8c677f008ab3a91080ddb41478691834506524423ca16da6264. 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/USCGH2452994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb5ebd8c013f28db2da8891f1da2e4d4e25a7ebdcaa2f363a8521dfc4ff46d8. 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/USCGJ2437991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02ea7660485b8c677f008ab3a91080ddb41478691834506524423ca16da6264. 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/USCGH2452994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02ea7660485b8c677f008ab3a91080ddb41478691834506524423ca16da6264. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGH2452994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa29244f3f1a58665f2e87f84d712b003ca5bec623f0d67c5f232f0d57dfff4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAFQ2153800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e6c63cfd60565e0155a4967f9633052eb198ea06a79c02c5e6ad727dc657c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAEE1926228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf51005a698bd9757eb465f2192dd68b509aff96e328b18afdbfc020044b7e425. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADG1715089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6039444952686bdc8248d80b5a4501709fc3d897f310bee87b3b9c677cb80ed5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG11902676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1894bd665d8639b5fdcfe5a66cf8275ffec0220f33e3adfe804db9186a3248. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUG11902682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874942d1f711b8e78dd1722de717baca30be36480ab38353cc2e04d47663de78. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG11902683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90259d5674e879fbf40686f6d712a2598156cbaf142d7f8a852c8a3b42087fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUG11902684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1050380c54999d50f9d1f5c58e653a1a594ae7c456004fe9a498cfaac3effeaf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUG11902678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5edf5642ec48888cf0e31bfd9beb024279da74df451759ad92711e470e7c881. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUG11902677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1863a5f00702d15d5439f3c6cc82f6322b534aa5f6a13b60772497987d1d586. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUG11902680.
Horizon (A New Day) - Stereovision Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa25d224b241b11894a59e7c6201dc8daaa4caaf3b9ef32e9b483b3660873e37. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUG11902681.
Scars (Come With Livin') - Neon Feather Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8ec5e0add6ac4b41b4f6ec32e734887b04035a2e18bde24c9291de9814b22a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM71903965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4ec546ed9a79a0b1d2deedff6d681b90ee1a9355586c89e8cc9b39afdb26f0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG11902679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377736112c614fc87933945a5ea9ba613b00ae51a62e42a6a9130effb7091ebb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG11902685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499131e24edb61525d2839dd944f63d53ba83d3eaf472da1e5447db1b927161a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCAHP2399804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7cd7be1cb00d7c7707ea6e45504f40e9653f2dc75cec6ea27471cc1e8f49ce. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCADO1829362.