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 0xcf4f556d45d6c47ee3d0a04bce13deecfbfe0a7a746470881481035bbef345ae. 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/e0470719-ccf6-4cce-85c8-388f3cbaadc7.json and https://artists.proofprofile.net/proofs/artist/e0470719-ccf6-4cce-85c8-388f3cbaadc7.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 0xace4928a72ab40dc74712a322d80d9040175b8a40653fd35a0941e7b909e7516. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBKQU2220184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd79f320ff75faac4de4ac0d0d1289001a8f5b4a7258324208064d989f3f554. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBKQU2230690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633c8549bc932bf9ef69cfa73fecd76059f1382b345302a24f897e174b4f55b8. 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/NLF712204236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0949be26b382a41262fa658f46cdee3c996fa9216f847737ebbf88ccaea11a70. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLF712300039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5d10af8b6eb48e30fadcf02bd0f20d38e35683af172783a8624a5c74b0f713. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLF712301239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19397b754aa9597f6965cf3e15aa2b33c08ae4d2cab2a136efa32af34b26528f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/NLF712304359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8558db51be6676ad7f9c258a901c9da8530cb233186c9903d137327cc9f744. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/NLF712307544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3789b3d8d7d410e99bd795a0215483f3706c16efca3a848485c7cae969a105c5. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/GBLV62321303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd9ecae710f0f7b56fe2026319daee05be8b6cd929910c3eaebf8fdc02ffe1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKQU2413764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63204e35137c6c3b5bcca56c126318a7a4a0bfaba10838cd9eeb0594481f3dd. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/NLF712400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883aac5cf37f20813af88f2cc9d3e8fe4aa54e74792ef4ead7c2bf62600bd941. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/GBKQU2444422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x804017cd19d829b8aafb9bdad1570f17018089fbae35a58adb70443d881aa588. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/NLF712407591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d49978ca3d900e1749b1aa79507d364f84a82e6f74e1aa6daaf5a8e5362a61. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/GBKQU2497432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753017c771487a3056cf925db7fac0fc02db307f08665d3a8cc346cdda34c910. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/GBLV62406220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f0b7cba3099df3efeda097f0ed01030793d8f7aee020f079442e7b31fdfac6. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBLV62412303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f279a6a6abec829f4e0b4ca9ed3b554a268cb77bc7c22e5fcceaf1755c7cbc8. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/GBLV62414469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69df6b603deb61e1aa7968025ad34aa9bf95ae4221ecc6b3bb6d8fa000133ab. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/GBLV62414470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f6d207d52a3ca7587b30f1e6f130b6f1eb0255fb29f553dc4f41b4d60c5652. 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/GBKQU2500955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfade8ba28b6543a6de23d47bec174a38862d87b396d21182427c8ee117ef331. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GBKQU2519717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e86aaf9e7db84e91b5f23b85223b1cd361f32c4226bfcb185673448a64d587. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBKQU2525165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe056317d0694e957ef9c77e9aa78af64160ed580f72154b8824ce7ca373ab322. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/GBKQU2530724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a7f3815c4640f9b5adb451882a7d8529c246f0289ed2b1c42b4272734d4778. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBKQU2557349.
ASOT 1179 - A State of Trance Episode 1179 [Including Live at ASOT 950 (Utrecht, The Netherlands) [Who's Afraid Of 138?!] (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafdeb188c73eca3f4ea55b88c2f7c5adf5143ce80951c98ae3a23d3d7b0f7702. 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/NLF712406009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf353225e8aba387e771e0dfc954cf05f76f2a514c4dcba55646caf03650a8b. 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/GBKQU2402375.
A State of Trance Radio Top 50 - 2023, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19397b754aa9597f6965cf3e15aa2b33c08ae4d2cab2a136efa32af34b26528f. 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/NLF712304359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19397b754aa9597f6965cf3e15aa2b33c08ae4d2cab2a136efa32af34b26528f. 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/NLF712304359.
A State of Trance, Ibiza 2023 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b4fe275103f018148915f0760e5b8c9999379f0dc737596c7f86682b72f177. 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/NLF712306500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9e625fe7e17e9a41ec47c8cc0dce6cadc74179d4876af725d69390c666f3ce. 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/NLF712306523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9414f05ba8ade2385508435d7ea1ca96fb533834a225ae7c96b815571008f6. 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/NLF712308744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e202bb45e649b954396a919872f08f89ffcc3bc83011c2ee3c04082f76ac73. 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/GBKQU2411673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea346050198ce6a61c1b90411e173f71a3cd90b0d793b01c9f7164e04614827. 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/NLF712400049.
ASOT 1155 - A State of Trance Episode 1155 [Including Live at Tomorrowland Belgium 2017 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01677f5b6e90c7dad276e5fa5e4dc4c4c2b66ea21e3f3decd62e2528bc3d09cf. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/NLF712400290.