Chants From the Holyland- Graz Gregorian Chants School of Austri
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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 0xac08c8a5eb8c39d0cbae600c5f51724b8a05b1012ebf90a9fba3d22347af9b02. 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/41d29726-4fe3-44e2-b08b-9b27cbb0f299.json and https://artists.proofprofile.net/proofs/artist/41d29726-4fe3-44e2-b08b-9b27cbb0f299.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CD 9-Pilgrimage to Dormition Abbey-The Graz Gregorian Chant School
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 0x3140baea1b678c85218ee6858afac62f207077c45eaf5c0069bc7291ada82c97. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USA370334679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1023e420ee5c4f18dbf22120c0f9a0372c7567da1266b7526f4baba52344edea. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA370334683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda0be602e911e921d45b841303e348e2dcdaf84c242615bf56bfa55e276a5ef. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USA370334684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9af15b1841d34ed42770b154e74bf857212e7eeb8621882a65d637695d409e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA370334685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26579f75985477cb23a556291e409fda1263b441b75fdaea76ced1cf0609a79f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USA370334686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0a91717d1feba2c8f523e6e303dfa9dc1c2f3e76d0553877d078420aee0012. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USA370334688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3a016e42248977991c552f8371dc69801cc3ce8581f5614bf1a1d0019b4dd1. 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/USA370334689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b47e75f416eef570411240d6463227336a004443a0efbecb2cfec01a38f5dc4. 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/USA560314881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99df42bf662b3439e007db7fee70b1dad42542c2a989adf317819e7230181767. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZP7F2581740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc375c9355f487f9a94e643381628402dc76e6fd4d2278f364995987e23176539. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZP7F2581741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c87cc5b1b726d13bc9c0fc54180f95f975f5bcbd7671f36e3d1afccd347ae7. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZP7F2581742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72f91f1c11a5067f1120dc3d1c5ebc313176d87f8800c84184d2604c6f0d011. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QZP7F2581743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2b8a4d9336f51e7a3aa0a00109775c8a134a1ec528c932f15222f68b401993. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/QZP7F2581744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f24dd6196bde3cc561b43877fe4fa7162071a98df4cf2eb6a908f577707adcc. 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/QZP7F2581745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221fd98ab4f4e4d3df50eaa6a067fcd935f9d0aefc44de2416d98d84d40dd175. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZP7F2581746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662be97958f680a8c214c63a4604a77e3716fa2fef32bccf34ff7c26a2e6088b. 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/QZP7F2581747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba9c4295205b14ff6bb7d62733bd5511a6874a55bb9c98461089f0ef8cdac61. 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/QZP7F2581750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067a93096e6e98c0133f2138a413b8d34ec4620cc7e071002034f6ce8f1a80a8. 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/QZP7F2581751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0d74650c681ad80d1330ccada7c3080c615a1a97482d189de6a9fbd0b8a354. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZP7F2583610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8146091d4a2ed4d57a8c1128998f68e088c8ad72f436b5fc9e9c3a0a345fc681. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZP7F2583611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35120892802bfc51736da13e664772899e20bd4c5c287be71799514f3b6d1b98. 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/QZP7F2583612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109370a53c5e289f1a90ba648a0ddfa7fb267876f14e7db96d90c53e81da72c2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZP7F2583613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b097830cfed8dbaafb774b6c0c79287d0d38ac17172ac71d11723c1651a33e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZP7F2583614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d08c9de5aa542b8b288493640b73db9cd5ecdbc268bc09cbc41d1f564462ef. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZP7F2583615.
Light of Mary - Chants from The Holy Land
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb61f467b03e7215e2efc6e1afcdc089d669ddb07e656b46a64a88470a2208e39. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/QZP7F2586443.
Light of the East: Chants from the Holy Land