1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x4d9a873c5f0271e3893f31ce4073336a6ea9fad222e5fec4606bef28104db6bd. 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/7e18946f-2797-4a22-8461-3f474ae16a71.json and https://artists.proofprofile.net/proofs/artist/7e18946f-2797-4a22-8461-3f474ae16a71.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 → block OTSBitcoinBlock must exist at that height 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 0x8b67f4cd1e3fe702aa0fc06e5cb5d4570d5e1b8c729aad557e01ae0b555a8449. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:13:42Z), 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/NLQ901100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bd75ceab48b7895cd273b5588945312560c67346c67d6a9a3b4fd378a16a96. 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/NLQ901100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c31f98d1bebcd6735684496066a02b689b3b00f07e8af9af46b2f532ff2fc3. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NLQ901100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867487b0dbf680bbb5d46666af43cd5839e688a9543bb9bf3e4de75f07aa0b8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLQ901100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7896c4fd2f18f8e7d983028472eb112c1b5fcdd3732d162ea2c3aa098588528. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/NLQ901000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf445fa3f28382bb9b437dda347fe4f0a9f5545edbc5704e62fe0a0e2d703eeaa. 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/NLQ901100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f321e8ef86551c453122042d1d95b0dd40cf7096b11879c3ab967cf4e075f71. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLQ901100174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84eb982c3f43d2f33e9544aea2c790b030888a2bbb4c6481188ec3eefe8748fa. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLQ271300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d80521c55b7e529ce2ca91206c1c64fb36e6fc4fe74d7daacc8799cad441ce. 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/NLQ271300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a8197a7f78c0d5f4a6e3065baf44d5616467fb24cd7d0fe25b4e85de6d7086. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLQ271300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1dd08b22066375723bb6a975966502128adf642041b6ffdfda638c6886ecc1f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLQ271300040.
Hou Me Nog Een Keertje Vast (Geniet Van het Leven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x215966b8c41d1ba7aa7a2021bccdb3738bfa79633d5792f3730f6c0530f03f58. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLQ271400188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cf36df382b10700f1a2e49dc3269be1c55d45c2dfe7c8ccb7b471c36d2526e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLQ271400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8599ac89129def57c13705f5c807ee54390aa996169f063a1bf9c01bb3c6b1. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/NLQ271400294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d85bf42f741bbc0cb6592b1712f8da6af5b92b2c523113188d892c168cd3445. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLQ271500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4ccbc8d70263fd17ffbd6d061a67fe7eda63c977d148dfc8d0cb2447a62d75. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:56:08Z), 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/NLQ271500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53055bb28d8cb3037adf4411cb4ee03d7270afc546af63406cfa2b3506d2224a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NLQ271500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c64855453b21ddee23146e3b812416bc8dac261fb0297c0b8e531eebcb53e8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLQ271500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb791c929ae954f5c1da471c3a8b15627639a30d29162990bedc3f01dc5c0668c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/NLQ271600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2413c09ec05edf1e16147eec0c16c6308f2702a67f27259c6657b301121e63. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/NLQ271600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d33bfb8aa53c9ed0f2ec7689803e93555ba376b964597c78b8214a1c915734. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/NLQ271600141.
Ik Vraag Je Met Pijn In M`n Hart (orkestband)
Ik Vraag Je Met Pijn In M'n Hart (orkestband)
Hou me Nog één Keertje vast (geniet van het leven) orkestband
Ja Ik Weet Ik Word Wat Ouder (orkestband)
Jij Mag Alles Van Mij Houden (Orkestband)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ce96f0396796deb9214076242c2b12e2a7699def85a25793d87f9c648a5440. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLQ271300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1194f5c50d53f3af9d8f78c6ef92367f91d8183a4964e05003777d0581cb4b16. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/NLQ271300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff221ae5562d4a347ab5bc975815ecaac82471e4b6d85e81e83f2dde52b94c54. 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/NLQ271400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0123aee6dc0cfc6efe417d2a298eeaea5bce14e5cae78662421641992a68f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLQ271400184.
Kon Jij Hier Nog Maar Een Keer Zijn (Orkestband)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06fea623d4aa37108fc7025de12ddffe70cf0f8133dee026999b910b44fe2cb. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/NLQ271800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787ee41ebce8b55c30f13055247d23188bed16b7dfe4b47195724ca521efb0f5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLQ271900113.