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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57b73c872130d12033595b2103bd53028e693dd6546b3008eb1cddc67a5f205. 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/b3bd4aa7-0595-482f-bb7f-1caa25ea3916.json and https://artists.proofprofile.net/proofs/artist/b3bd4aa7-0595-482f-bb7f-1caa25ea3916.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e576da6ce63b8a65f2c18c696ed7121f23e0f97a211cf3fc9c220ca47e709e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR6V81073164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343a9f3e75cd9ecbf2349ae3d94039896eea98f415bb9d2c2271fbc630f73b54. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR6V81073165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16410dbb5964474f736de7e0819d630d6cd2f516e8ac56618ad72754bac1bd71. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR6V81073167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141e3728266272665d1242aafe8a3d17f4476d350a5a0dfed7d3f84d1a8bde4f. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:33:31Z), 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/FR6V81073169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d0dcb99f1238b6060dd2fe6a58725fd9b218164b5cee6739aa526a79730496. 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/FR6V81073174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a659e52b77afbaca4e0eb47a65fcb9e77dfa24956dc2f91d2b4aae770dc72c9. 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/USA370542148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbea110d1d0b70a5a0355431e99730391f59844d28fa7584368635b3a85fb0f53. 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/USA560761340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f40e7da0f5dde803a6dd6d8226b555494e6b6dea2a660ca82fe193c828d048. 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/USA560761341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07bd44de5b3962e699c2ddb2bd0a0726a674e90195565700d4e73079188f300. 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/USA560761343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43702eb5b4042a6a3da395dd252e76ac0711cee7903e62b5eddd35f5eb085d0b. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:11:05Z), 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/USA560761344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6c04b79e237bce804178d69f994ade219a9dd4215ddb77ca4c13eb30617e37. 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/FR10S1608125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3a66b23778111ac0253284c2052ee0caa5d9124648ac848e4513e72248a304. 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/ITN731303320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2664ada5879d6ad4329f7e1ecea5e088c64b5c6bda4c48db1670b1d1e0cc0c2. 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/ITN731303321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2519c42300721317c2d04efbe4fd65d4724820c29015eb871ab82219f206de7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ITB006870561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600f4a2479fa25c902532034df6c3ee567728fe1aa2748ad296cea5666a22832. Chain 2 (Bitcoin): anchored in block 958677 (2026-07-19T05:47:23Z), 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/ITB006270529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564ca42ca0dc6f6c7707911f4273df599b92de39bed44111f2c3bac2c1049769. 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/ITB006970551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecca340d610ac01cf1ab1ad367c9cd6a663e4e0eb746bbba6685ffc135d8d4c5. 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/ITB006370711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57581287c3dd96dddf12b6a9e6e506591357a40d1d929876cca6e2778c0616b. 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/ITB007070812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ddc0934a0af6303554ac3b69dfc50c0aef65edbab0fe8c47e3926d45667b82. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ITB006671122.
Little tony non finisce qui (Sanremo 2008)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48447f1b89c3f83bd08dc8ef455a96f6fde46f187800c72a7e996adfe48ba505. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ITD560200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d2fea92622972717379785a65bffd792465353321494bac16aa9a311d24f11. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITD560200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2519c42300721317c2d04efbe4fd65d4724820c29015eb871ab82219f206de7. 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/ITB006870561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564ca42ca0dc6f6c7707911f4273df599b92de39bed44111f2c3bac2c1049769. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITB006970551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3483d5819005ff3cc29f0167defe26a5b37567d03803887e31ecbc757614fb6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6V81445295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a0cf8c62065e1de9a6c8052123aaaee071bddf138377d6c66e0e8921942a11. 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/FR6V81445297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59e691c2f5a8ef8d8d54aff3c53b31777c80e9220bee5195e907a9d07a8d535. 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/FR6V81445300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750b33f726961e2016c2910a21795208426c6acad64c71e14cb7b53a59878df7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR6V81445303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b13f9504ca9d6b358687fa09481a59ea3218b9746fe6fda796167d9973279ba. 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/FR6V81445304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c52875eaa1a1c32416069298b651220bc04c876ea1f338965ccf457fc064218. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR6V81445307.
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 0x7dcbde23d41e72fc2f173d38b263caaa07bd4c609788743302289cb7c1664ab1. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FR6V81445296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8054ee68ebe89a09a4a5d4949a104231ebb6b4a7e5fba5d12c40a318d48da77. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR6V81445299.
Pericolo blu (Da '5 Marines per 100 ragazze')
The Italian Stars (Original Recordings Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f59cd1c392b28ebc5e2533dff78995e767575e9fa11d6fe3ce3c94a801dc4a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:06:34Z), 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/GBURZ1307302.
24.000 Kisses (I Grandi Artisti Italiani)
Grandi Interpreti Italiani: Cuore matto - EP
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868ae5f68574ca2699d04701604794d05dea4d87daba0ccaf064036669050d01. 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/IT8VL1801005.
In Love with Little Tony (Digitally Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d67b90d489a1d29e415a014e11ed6d1cb4ad29a15d990568fd37710d7f577a. 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/FRDCX2058070.
Vintage Selection: Little Tony Story (2021 Remastered)
Merry Christmas and a Happy New Year from Little Tony
Feliz Navidad y próspero Año Nuevo de Little Tony
Un Tipo Rock! - I primi successi di Little Tony
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86c218e6f6cc22a984ac8825b9c181ba03e6524b6c78b2a78fe2c4da851d2be. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBWWN0801653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57581287c3dd96dddf12b6a9e6e506591357a40d1d929876cca6e2778c0616b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITB007070812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b953738c48bf28579323b7cec683837743b135f3a08e5f293b815dad036c12. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ITA619500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d9e58d6a670188e2a87d47d2b9c4878f56bccd508b813ce0debde31bd4f89c. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/GBWWN0801643.
Le 100 canzoni dell' Estate-Abbronzatissima-Gelato al cioccolato-Balada-Vamos a la playa-Kalimba de luna- Andamento lento - Soul sister - Dolce vita - Oye como va - Camisa negra - We no speak
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb6fc3b6f9aa184e3d65d697cd4b70eba15dfe0e33a95b0c2e84564e2c7fd80. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/ITZ019800294.