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 0xceec9ce2dbbfecb72a3640f8ab17b6ebc640a926ece9d522d2692a40449c6302. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b7a8b59-c88b-4a46-9daa-f91db5a11652.json and https://artists.proofprofile.net/proofs/artist/1b7a8b59-c88b-4a46-9daa-f91db5a11652.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 0x43a6464697452f183098491e179b77dabf98be31886d23b978a9df5a6c9c17eb. 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/GBKQU1593340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54dc9881e5a2dfb26e9a4c8a926842d73672ae866d381e206000683341bfa071. 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/GBEH41594799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc71c2876d8a634efa5d9c38706494aa8180cfb0653d37ba2bac64a72eda2b57. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLFH50800223.
Next To Mexico Feat. Mereki - Yolanda Be Cool Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604d8bc75dff7e12c679ca452b33c52c2e86297538a8e7b9691b70dccec37da6. 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/GBJAJ1600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2fd43701dd8d53ddef83125135e3c19c369230a397028b5dff61704df3e57d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BEN581500555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3595977f30c5b62d876b48cd3de3089922cb6e0dc7dfd1f94ecb8623bf87b7c8. 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/DECL81500186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1463a27b7643da4963da1e44ce0a3da28faabc506b58248d217e7f98a5d1ca65. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEMI31500098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff05cfb3ffe20e6a54e600221722ba403b55ca94d14a1aabcba13f3a49618d72. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QMLD61408135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac554b2c36ef5fab4a4bb39d086819d24f73934527b8e19d34e0bbfa371b54f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUDCB1300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0fdc701eb5f0fa2cd67dc4bf9221958d52177b27f85051c4cd200f0394a068c. 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/GBJAJ1600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b81df4788878539e309917ebb50a5955a5970809f89cb88722bd36e020f7e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBJAJ1600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b79bf4b6a6b00b7aed16957b40cb69779dea5c9647f92a90e512ac395d5727. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBJAJ1600114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff85c71b364a3f38d37fcba2868fcf9adebdd2ebc140cc12febd19858ba6efac. 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/FR9W11515407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3565c5890d62321d04e1f36da69a5208e38436bb5fd7b17c27994d06f12b7d0. 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/GBJAJ1600111.
A Warm Intention Feat. Mauveine - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb856f2e83f1f1fd569bb72701ecfc5d06ac8fe025d7f161e2661439e2aa3cf1c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBJAJ1600112.
Raw House - Paul C & Paolo Martini Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46598977aefb04c18cdf9153449d5ee213f6663c7403556fa7a8a8049370e2cd. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/ITA061300996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a68a5acd0858d9349b139cc8d641a623fd557ef84a5701263ce58affd13c2d. 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/GBJAJ1600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d0381da38778456ae545258ed1b4ec6d5eec01e93b2589b8538c7bd96aa22f. 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/GBQ2F1561223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a6464697452f183098491e179b77dabf98be31886d23b978a9df5a6c9c17eb. 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/GBKQU1593340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa68005eafd06223ab39f80b2d5a551377465eab644a716a26d06c943dff3b3a. 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/GBKQU1567517.
Can't Stop - Andrew Rai & Jean Bacarreza Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b3197cbabf3f54826d2d1faf733f249efb3df6a47f2e19b3754d7462e6fa1b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBKQU1567519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a3bb917177b2ae9299e74b02f7b1cc3d94f9076461de1ebff7646f943901d9. 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/GBENT1330295.
Do What U Do - Moe Turk & Fat Cat Slim Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30c03406ea2ba6d21ec3e03420b8de1668bc88d6b821554ad494bb6bdce4e185. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBENT1330296.
From Tehran to Playa del Carmen, BPM Sampler 2016