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 0x5fa5d34994f90ead2b2ea0cecfa22d1cbc5e6bea0a45746a3d23d64c364160eb. 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/52240dcb-1dd3-4fa9-aaa9-edfa35e2718f.json and https://artists.proofprofile.net/proofs/artist/52240dcb-1dd3-4fa9-aaa9-edfa35e2718f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
De spelregels van Floor - De regels van Floor, Deel 9 (Onverkort)
Hoofdstuk 1 - De spelregels van Floor - De regels van Floor, Deel 9
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 0xf66a8e6647736e902979d3e58492819d363062dc50628f4a794f37c64379d7ac. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/DEXN82330266.
Hoofdstuk 2 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0abfa5978a7be96a91268c8cd972237f477ce0ef675c4fd01de39e860fc8971. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEXN82330267.
Hoofdstuk 3 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f7629a2c1793c01cf129c7a7acd0d447a91809f70fed2a1548d1e6a5f4db61. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEXN82330268.
Hoofdstuk 4 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb667ddade1464edbde78db6ae6c43a302495d07e37ec75af4c47b07a3576bc. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/DEXN82330269.
Hoofdstuk 5 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813cbb043af2be7bd92d5f1ef0231e3a7460ee6de7dde59d3dc9ebdfbd7d5b0a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEXN82330270.
Hoofdstuk 6 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d05abe02d3fdbf1e0efeaf1566296f85dc306b7eb4a726ec3020d7e1eaf4dd4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/DEXN82330271.
Hoofdstuk 7 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a5cd6b38dca2c224ef66c9ba88ece747318ec607bbc13a28e0dfb17b333559. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEXN82330272.
Hoofdstuk 8 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254a7b3e60e303442af5e00694533646cc0f5b11228480a34a44324487302b23. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/DEXN82330273.
Hoofdstuk 9 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54f5498bcacc621b58057d285467546fe7d8c5f5db893658ac9339e5787e73a3. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/DEXN82330274.
Hoofdstuk 10 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b63ec59082677412117ef1b4177ac9e81245ee379325dcbe53dbf052069f19f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/DEXN82330275.
Hoofdstuk 11 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc364c397bcdd10afefe3dadd7f9677386077722cbcb645f795f2591f9ad88de5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEXN82330276.
Hoofdstuk 13 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa210a3f7342e7aac45a83c648236f2527c3ebb9f1463506453c3e84fcbfb0c98. 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/DEXN82330278.
Hoofdstuk 15 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d346e32efe5a65c4da853cb6731a9ed089f9829345d28822ab32284f23ee447. 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/DEXN82330280.
Hoofdstuk 18 - De spelregels van Floor - De regels van Floor, Deel 9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbc4e7c8e6b1af0f1219543e948b3fef5658852182fddc9b6db515cff1623e0. 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/DEXN82330283.
Floor gaat ervoor! - De regels van Floor (Onverkort)
Hoofdstuk 1 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8800b6c2e5399c6f1a9dec0e1b6ac4351a0e432f1a19989273164dd002ff446. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEXN82330200.
Hoofdstuk 2 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1651909b76861181b04129cdfc5ffbc029d15678f15e1b6f909d2837622098. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DEXN82330201.
Hoofdstuk 3 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c08b88c09b38d2284929a0cdd385d51c48d22ef1b9f193af40a788a53d42ce. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEXN82330202.
Hoofdstuk 4 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1632ae59507ed62f1b158e9e5849a1e0b242daac6e7e64e3778873b7d651fd. 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/DEXN82330203.
Hoofdstuk 5 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15bb31dccf986849ac851d0ad6a88c359d2b62453a10cf1f116cd9edd6d3d6c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEXN82330204.
Hoofdstuk 6 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3a656d0c51543568b23a87374da6b3820cddb5ea134d565a6d4637b132707f. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/DEXN82330205.
Hoofdstuk 7 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6c0107fe88a3fcd6608dfe4060ed31df46a8d24e4adb0cd985343b7e5682a5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/DEXN82330206.
Hoofdstuk 8 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f4256f0d510ccd318aad8d1730517598d918568db1e377d45c8d1a06a25bd8. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/DEXN82330207.
Hoofdstuk 9 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dab72f2193cf20e20d1dd15c4ac78fe257932c4d63a37b696667a188d029530. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/DEXN82330208.
Hoofdstuk 10 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a9375235b2a49bd1b78168dc54357daffa89fb36e0ba7da1276b2e92c0f52d. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/DEXN82330209.
Hoofdstuk 11 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f8ace42117c9f3fdb77bee39144322c748f8d659097e7dcee5606098d57075. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEXN82330210.
Hoofdstuk 12 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b8c6f66671c9132d496211574e96f9bdf58530acb8a75e63fe1498a3551c97. 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/DEXN82330211.
Hoofdstuk 13 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0102e550e49b4c4d14acfd3e774375b8308cf2cf08e9bbe41fa8e24dbccf78. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEXN82330212.
Hoofdstuk 15 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5820cbcfbf73a0cec8c5607759eaf33b5023065a0ded614309902004a97b7b. 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/DEXN82330214.
Hoofdstuk 16 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67689096a99d718e157f9941236058c5c2ed02b857790ba967d737554d93b0f3. 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/DEXN82330215.
Hoofdstuk 17 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fcba5ef8d1848a38de6a13b440ef9839a3119427ccb5ae0264ea99124ddd2ec. 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/DEXN82330216.
Hoofdstuk 18 - Floor gaat ervoor! - De regels van Floor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4952738806b869c06c3d9c6084696909fdad2158770623179432b18cfdef93dc. 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/DEXN82330217.