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 0x15d5fb27a7db33da62ca6a9ff3f0c90f0ab3a5c8e4b10c09757180a7c1219dce. 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/a1f7f599-3087-4c4d-b621-9c6851e6a318.json and https://artists.proofprofile.net/proofs/artist/a1f7f599-3087-4c4d-b621-9c6851e6a318.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 0x98b1e1dd7e61c3a31b66f104218c195ca7aa4325a904cda2c808bdece04e7cec. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLS202300337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012828d6461fbe3202f193762ffac7df657a8741ec887fe64d81497973bdc4b8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/NLS202300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe855623f6bf48f2e294fbc3bb5051a12964db1a296f7e2a6c34635a0a99bbc61. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLS202300341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cb8d9106ff452508d066bf30e5fd738bd84ee705eb0b980703061d81cf96cd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/NLS202400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5635e4a2da0f7ebda2a5d841fee1a5227279921588720bd0f446a17b44d67c86. 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/NLS202300172.
This is Refox (Official Cologne Goes Hard Anthem 2022)
This is Refox (Official Cologne Goes Hard Anthem 2022) - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e03a85c673ec76cbc98e1873196064e1232470ca32eef4bf8e5d238d6763ec5. 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/NLS202300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db2fa847ce7399e387ab5c8f55c91a5905fe0430661eb387fba239f1eb22539. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/NLS202200328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7434e19439ffc658e2750912f0c7aa950dcb9699377c8d313bc36491b3f7c082. 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/NLS202200330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985f4f9b72bc4f325a5dda7df2c89f8a6c5d923fc2630f2d3eed6582107bface. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLS202200332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fdd5303badd1b681430c0b56a295acb20f8adc665bbc038cf9052196284159. 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/NLS202200334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180a6f08d4f99ed3ea87f3c9f7bb762424c2ab5d0b9f0dea0284b6d0fcf1d3a6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NLS202200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78511035744e8b3e4b4496b32800381411a38f4f726ed90b8375ee3bf9b19aee. 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/NLS202200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878082be16eeb37e5e79e34ad1ccc99b089ce9ca124c5632cf0853554667201b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NLS202200084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33563363a52313ccade3374894be670771512fb3300f25ecfa059428c8a972fe. 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/UKXN22170194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5635e4a2da0f7ebda2a5d841fee1a5227279921588720bd0f446a17b44d67c86. 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/NLS202300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee406e1a6d462242ac89886d9a6e6f28c0e23b4f02009a5d9f865b8fc855dc. 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/NLS202300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ee406e1a6d462242ac89886d9a6e6f28c0e23b4f02009a5d9f865b8fc855dc. 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/NLS202300203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2a9e8d269b32d2269ad1bed9828f297bd95a7688cf1698fd50ec25e614f691. 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/NLS202300205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fdd5303badd1b681430c0b56a295acb20f8adc665bbc038cf9052196284159. 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/NLS202200334.