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 0xad5ecb371935c61491783dd3f66af7727698bbf1f3cf636f3cf92157f586e620. 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/82fb25ff-b92c-4a26-8e35-ab0d0b413a1a.json and https://artists.proofprofile.net/proofs/artist/82fb25ff-b92c-4a26-8e35-ab0d0b413a1a.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 0xb1d4c5ad2f5dc16196704e171ce937eccbb365799cc9cb54087db05e7f2ab90d. 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/GBKQU2054143.
ilan Bluestone Presents: 20 Years Of Anjunabeats
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34fa0df3f109315fd3bbc71ce7bad0196cbf4e2565e55f34f270d07ec167e71. 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/GBEWA1902128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e67866d3b8cd02b2e6e18f73632e409873d9771e112d4f7364f19fa0403b95. 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/GBEWA1902141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x711a00a13e98c6be9ea8dcb6868c0ec9a3b8326653cde767122cda16d6c97dc0. 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/GBEWA2302680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57366acaa90524d5ca1faa45b5b82deb714ae54b97dd3d8064fb0a596670b2d. 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/GBEWA2302683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7906ca0565b216143e6f28e3ff72efed91abb47b10974e11e7bc17d52ed3531a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBEWA2203464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bc7d1e05e9e4dad1fdb2075b3f3e48aa5f4454e5f45e3393c8a07009da53fe. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBEWA2203930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7906ca0565b216143e6f28e3ff72efed91abb47b10974e11e7bc17d52ed3531a. 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/GBEWA2203464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec1fe77ced999a6dee3173f9b1f5b3f4c86d76a0b1e69d5bce94cfe7167e8f3. 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/BX0BA2200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292737a028b457cbffa94e1ed36810fd803bc3218a08f708892e76fd46a276fb. 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/BX0BA2100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd214fb735091bfc3594c1966e0a5c78bba8eba149f17934f9fda2ecd75f4915. 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/GBEWA1904750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf60b4c0399a96b98ec06a527c29028ebcec5916954bc1ad89ab1cca75b7a73. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBEWA1902123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069e8d0b318097d6dbae22506a71004ef8f013a1e160f839e3a3fa64ec3b80bc. 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/GBEWA1904751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ce3c68bfdbd3f16dc0ab1fb1dac3d1e6706e655ce6fc306612ac2a92c0c079. 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/GBEWA1902136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf955774587208f4de345b8c2fe8a6849465426471ef24001e101f8a6df8f41c1. 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/GBEWA2307031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50046c3620e026092bd6fa0f2f4fde23e64f3a3266db3e0ee5b260abf1e374bd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBEWA2307034.
Crystallized (Record Of The Week) [ABGT561]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6a7a0b1592c6fdde7aa0b5267daff53cde2aa1717f95adab5b796d03ad1413. 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/GBEWA2400055.
Chaos (ABGTN2024D) - Laura van Dam Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d83d4aee726b02dc6521412879c795e3f609f428c5a8fc3c924b6db60aa3d2. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBEWA2307101.