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 0x51bf7c5a0d17c5f291d1cf892f533df99568445bb52b9625b2439cb4cc0d4185. 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/9902242b-83b2-409e-bc5b-69341087ae76.json and https://artists.proofprofile.net/proofs/artist/9902242b-83b2-409e-bc5b-69341087ae76.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 0x5f6c03a13c79019664d867628ca48fff43cb9771be47db5f99beb5da5feaadce. 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/BEEJ12200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c831ba931c966df4bc12cfb9ee2e77c53d90795f11bd34c9925bddcaae0704d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEEJ12200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86efd0eecc179daac3d4fb59c2368eaa708419836ce4e54ceefd27c418387dfd. 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/BEEJ12200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3813c809990dc2e237a8c2c5b9d7dd0ed296be3cba22bddf356d70d86c6b2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEEJ12200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbd7d173ceede49fb1de50d2875e651c40190e5480edad9a435253a653e87ed. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEEJ12200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66949a770dfcf2fcb258bbbfefe1fdb7a9639c1a3e678f20ae4de7a7b01f38c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BEEJ12200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3748e1e93fe31167e9e8eb89880a6187bf2e5ce2dc90d78414148e2ce2b75ac4. 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/BEEJ12200032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26ab2bd509c1957ed61d94ce07fc4748562a544e6d913fe1717ea7e4cf39af7. 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/BEEJ12200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8917ec0f7bd6eaa67b94eec6403b972ba0d31203b250bd5c5956f3e7002c188a. 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/BEEJ12200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd9b139ed30542b4397918d081c455482e31e25845a325a3c6f93fda97eaa2a. 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/BEEJ12200035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256c36425cca05392741abd42a4c1dceda2eecd2f468fdda8fe836893cb7b6b1. 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/BEEJ12200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6240325b746940d1101e2951f0f3e0cc0429593ae999ecc0b1d7d05b789113. 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/BEEJ12200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c3813c809990dc2e237a8c2c5b9d7dd0ed296be3cba22bddf356d70d86c6b2. 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/BEEJ12200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86efd0eecc179daac3d4fb59c2368eaa708419836ce4e54ceefd27c418387dfd. 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/BEEJ12200028.
COMPOSITIONS FOR THE DRIES VAN NOTEN COLLECTION & CATWALK Autumn/Winter 2023-24 (Live Recordings)
Dries Van Noten MEN A/W 23-24 show - Live recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd8e77c3ea73815cefcd69d8adf6b57038e1f4b9e1dc024c8a84667ead4a9c98. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BEP012311001.
Dries Van Noten WOMEN A/W 23-24 show - Live recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6840f6a8ef02bcd09e46616c47051f95d9398d22575d96165edcd7d0f5b4d2b. 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/BEP012311002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6106181c8c8428410082d84646c043ed4aa08a00290686279b51225529f638. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BEN582000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75fa7bfa65a2c8c834e799f6c7227c3f6bf01f9948734a410335c6da0aebe0b. 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/BEN582000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3663998bca398573a120681264d124198d340deeca73ab0dc885d042c6dc33c7. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/BEN582000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77d0dd0a5d7cd0b2cf51d1676db2c6af604e04a3e25e7a8af35a9b04b33ce0c. 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/BEUM72300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ca6949e7cc68aadc7a948cac8961eb552edf2c9250901d005c450889a9febb. 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/FRUM71900643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5401aac86d322ca17fadc0f163a975648a15af3072ddca1d4002ddd170e809. 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/BEEJ11900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f713cf2f3530dbe8c2ff5d744ccb710b636c7fc5b208dabf4440d34d97ff473. 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/BEEO72200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a632701aafb22e40de0132c3c81774f4c8053ab961b146e9833d12925e218e. 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/BEEJ12100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a5a1321e11fd81f2a0da60a5c0b12ab875aae9792da52be025ac3ed90e6486. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BEUM71700146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10229b60433accf94f3786e1000b028fda50c3527b2aa789bf6c037f0f5f5b94. 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/BE5EO1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c626d6311e92b215580ca94c93e6f4f3a82370cbd9a7bbc7e6e3f852e58c7a. 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/FRUM72100804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad1925148301ae2b2f572b3a439e1ba0fc8f4d519434e4813764b7d43993c3e. 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/BEEO71800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dea3a98fd065043831df75c7eb9789fae4b423884d503456c6de41ad8232342. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/NLG661300191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ee71bbd4e8508633fd56a67d4f53f1d4c3728898e26e932e7e19f107180268. 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/NLG661500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b4214e65eba88a7ef2b337081fe75dfb57988f964bab921edce32e66aaf8e1. 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/BEUM72200249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e31e70598939c323ef2f2a5b9f239073989b82a9df05686dd29f83466b5e72. 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/NLG661700613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d96a77e39115c85b81c17785a596a8ef694ab287fa00330a97adb4ac78c40c2. 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/BEP311710032.
Defoort: The Time of Our Singing, Act I Scene 2: Nest