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 0xe03c7873f522eb1a4f7fcbe711e4b5ac8d113982e393ae2d6efc7b705838f91b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6de124b4-9284-45d5-b0e0-20dc7e204a3f.json and https://artists.proofprofile.net/proofs/artist/6de124b4-9284-45d5-b0e0-20dc7e204a3f.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 0x6e6910a4bd16109b1003677bd87ceb3f434befb163ecac0e0cdfbfd217f68877. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/NLG661700708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122afc2ef8458f1f66c8a3bd35d004d9e9bba6bb5be9bc034f2947177c1cafc5. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:50:13Z), 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/NLG661800925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6910a4bd16109b1003677bd87ceb3f434befb163ecac0e0cdfbfd217f68877. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/NLG661700708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edeed795781eb0f7831f595611ab7da9afac5306e131e57357f9dcaa9336311. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:44:41Z), 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/NLG661800952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e823a8375606fe07210891cdc793171405465fdc917384e3fe6e7d9caed0f9. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLG661800848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122afc2ef8458f1f66c8a3bd35d004d9e9bba6bb5be9bc034f2947177c1cafc5. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/NLG661800925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cce950b045180bb11adf0ba3325068beb6cea1bd897f9af99237295e422e33c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLG661800955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660838aacf19400571e1098c283211dea1e9d13c678c0e1229e85e0328da4aeb. 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/QM4TW2236202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d7d4086eaf424dcae3e9423276811670d780b6b35af73f95e1b09a5742ebd7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QMBZ92252680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660838aacf19400571e1098c283211dea1e9d13c678c0e1229e85e0328da4aeb. 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/QM4TW2236202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da59fc3eb5e280f762ff2e199453dbd73462afef06c96e25b0ad8a088adb856. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMDA72295697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a520f0ab582a96c22edcaefd73f78aa97df60586b1751d07b65b6e6d5f0ba. 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/QMDA72214079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d7d4086eaf424dcae3e9423276811670d780b6b35af73f95e1b09a5742ebd7. 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/QMBZ92252680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6b373f3395da1425c83c4cb81bbba08ae1bff963d16f8c9de02dc83c751e63. 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/QMDA72295753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3823f878f32eb21709ad99bbaf03734ed2a1ab0f1a186caba4ce02924e29396c. 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/NLG661800616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b5d9b930da7f76f44ceed4d75b552866dd7412b9e18a7e118b39df5b58f7d0. 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/NLS241600643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0161b56e8ead78d915f52058f71e3b6204b402603dc802e0460cb309b50ac4cc. 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/USUYG1446503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ff18632f81f92759c2a17b8ce2c919ab912364bf4362a1b7a6ca5a7645c3dd. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLG661700525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795d9fa05a6efce9544589693faf9410a28cb2952518b2b9223b46f741956bb. 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/NLP1J1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a29a6b6792c75998f94f987990235a556a1d227c489532e2a0a004187a3d27. 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/NLS5K2000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c277f5b3defcaffb60c28f2935e19535bc658669af5cfafb45ea9acf4c3541c. 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/NLP1J1600001.
De Life (feat. Esko, Kevin, Michael Bryan & Quessswho)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151ec226377b34439c70cee2c4e9783b07d0eb039d8348682be15fb3fa4b22bd. 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/NLN8H1600009.