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 0xfb2936c2e440450ced1158d00e34aea24031cd9ac2d2c990b3a331496f829763. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9440de7-b7dc-4e5a-9b7f-5fafda25a3ab.json and https://artists.proofprofile.net/proofs/artist/b9440de7-b7dc-4e5a-9b7f-5fafda25a3ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
intro KONSERT - Live at Fjuk Island, Sweden, September 2020
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 0xd9db404567600f40beaaa4530ea02117dc6e2181e391cb01ae338a09dabbdb95. 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/SE4DQ2100115.
b in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7464657ff50c2b840a17ed750ac7b2e2aec627949a5884b7c0f53d661e06c694. 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/SE4DQ2100102.
o in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b62880777ffe8461201f5ebdddddd4ca47ae7b566f0411e066f6403b905f03. 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/SE4DQ2100103.
o_u in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c9d734813b5bd08b2db4b27e78e937fc4a959d14d8ad6c459caa2d5705c67b. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/SE4DQ2100116.
u in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb5fdcdfc86701357d5fa9d280cbaa0cb2d1d4447887187b3441b979e6e41b5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE4DQ2100104.
u_y in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6066974e6d9ea782a73e9bcd6e5f4a93f81df58af6f0dafcf20a8adc39ea28b2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/SE4DQ2100117.
y in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849539adca4248d83ac95750f7c5ac655f82ec6837206d2374cbcd9a3b5abd84. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/SE4DQ2100105.
y_t in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fb62af9748dc20581f2263d62ea5174f0c59974e2736ab748909f8d885ba84. 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/SE4DQ2100118.
; john in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94edd0311cb5de45dc19b2219aff3ce913109542b46aa80c9bc744520b6b04ad. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/SE4DQ2100106.
; john_sever in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b57715bf7b508af499c157c0acefb3c8cf10709f709aed625a0f8c171ac413e. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SE4DQ2100119.
sever in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7515269c9b8ad51d8561f22d62f8809c674121a1b8de579d73dbe8c2be8c3753. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/SE4DQ2100107.
play in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcdc384a42192de8256d913eae995b53b8d3be6ff8d44798cac548cdc83f4e6. 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/SE4DQ2100108.
samaritan in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad04c61259dce12497b4b1d24ea3d58aa18bd25255d53556440f61a3f06c35ad. 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/SE4DQ2100109.
samaritan_simmer in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4285ec45e4408b595db41e7992bae858af48d381ab2b27744a3649d3cbca4e59. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SE4DQ2100121.
simmer down in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2431372d464981913366364239cb3b601dfb2b41ab6e21bd256d36c9a0d66dc8. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/SE4DQ2100110.
simmer_fountain in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6789f17c5e826bdcc7d9397130b6e4f818af1fff37f195996711c1345b0495b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SE4DQ2100122.
fountain in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9c5631edc891ef02aec1e7f78da2072c014f231b0a89817bff77fefd65f68c. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/SE4DQ2100111.
matters in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa179e932e4163aa4409553e4edb0fabb29d27e0890f7aadc7a9042282d7c4c. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/SE4DQ2100112.
remember the future in KONSERT - Live at Fjuk Island, Sweden, September 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd66784899a419a8cae2ed15c3a5baecb9a9676beaab06a5ca04397a4dd8514. 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/SE4DQ2100113.