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 0x5f8865573c297bd98d5bb68de5fa18f4432fa6be9a25466f2d9c301a6d10b72c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00845000-1b79-48c5-9f21-41a22b0d261a.json and https://artists.proofprofile.net/proofs/artist/00845000-1b79-48c5-9f21-41a22b0d261a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cantos Católicos en Q'eqchi', Vol. 1 (Re-Grabación)
Chianchal Qach'ool Tqapaab' Qaawa' Jesús
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 0xc48f011194f4f4f8eef7d8bbb20f0b657a42bb358a1c186da06d624da0f404d6. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:18Z), 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/ESA011563436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccf10cab3e143e564889f2fb93e0bc2181001b031524325bd6b213028b22458. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/ESA011563437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9332583a96e5be3c5f44f3411f02479ac9d7535f25eba3f5d4e6591753706103. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/ESA011563439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f3849587aed155c58faab54b00602bf070fcfdcf0d9b08a22648dec73325fb. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:43:25Z), 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/ESA011563440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb851e21223098a08b9f248840c48ad679b61624c38e69c20a0b0f6920cc79656. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/ESA011563442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647333f4c615473c0e841dbcc379d3a0d73dfa86ff1ede0c4619bd4d772d9dc7. 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/ESA011563447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc99c5782b530fdb75c249b083c63685d0043058bd4793af04c7599fc619318. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ESA011563448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea00926a8f31b3b98d664e64d717b803fabba7ac6890ddb205c8e28679b5f8b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:38:42Z), 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/ESA011563449.
Kajo' Xsahil Qa Ch'ool Naq Xo K'ulun Arin
B'antiox Qaawa' Wan Lin Yuam Li Xa K'ewe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecfd41797bfb4f15327b75e145fd7573b5ac4e024e5b0d66a3a76c563a78e44. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:00:14Z), 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/QZ5AB2303716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c1087d2fb987a35d41de29cb825debe3bb0054ddfca69c24667cf1866fc480. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZGLS2327573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27318b9fe9770e332ea01965ba65ef04eda16978aa9fdf68f199e72bcbe14a2c. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:32:46Z), 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/QZGLS2327574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0657f7936e5d7247356a7d7e01a2f8c133406d6093e4c4ae0bd76eee319054. 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/QZGLS2327576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209baf95a20f6d57a923391372432e67f7d64668b15fddd5fd4bbcccd19397b1. 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/QZGLS2327578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf86280830ff12220f6652834f7d14faf491a805509fba7ca3e5a7d15f92022. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZGLS2327584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb5294dfdf8d5595f5b0d5307c13ad2246704e85ecd609c351250fb36ea94b0e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZGLS2341732.
Chataqla A't Qaawa' Naab'aleb' Laj K'anjel
Chi A'nchal Qa Chool Tqapaab' Qaawa' Jesús (2021 Remastered)
Cantos Católicos Más Escuchadas en Q'eqchi' (2023 Remastered)