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 0x324bdcdcb3552b86960edf8a798c53575570b79011cc68384290333a3c57b750. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0bd6dc7c-5244-4b12-bfe4-b0c7877ac461.json and https://artists.proofprofile.net/proofs/artist/0bd6dc7c-5244-4b12-bfe4-b0c7877ac461.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Missa solemnis in D Major, Op. 123: I. Kyrie: Kyrie eleison. Assai sostenuto
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 0x29044a21d9e362f2f3895f0f75d0ae965f605e066d6e401e39db63a166224220. 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/CH4212300043.
Missa solemnis in D Major, Op. 123: I. Kyrie: Kyrie eleison. Tempo primo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23915c61ec35e914070d55fb1d84385b0f9b6973f9c2345cada3d817be299b5. 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/CH4212300045.
Missa solemnis in D major, Op. 123: II. Gloria: Gratias agimus tibi. Meno allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0508a825155e24db2b94b960134f8798a42d189a6dd2788eafd02b9a96a75c. 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/CH4212300047.
Missa solemnis in D major, Op. 123: II. Gloria: Qui tollis peccata mundi. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f49b99add59736a9b789fbe5ce6bf6fde81a26aa23315000aa8ad471c70551. 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/CH4212300048.
Missa solemnis in D major, Op. 123: III. Credo: Et resurrexit. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7be8da53a4580b9cc41b6cd0bfed6592735db58b1f358700041892525616a96. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CH4212300056.
Missa solemnis in D Major, Op. 123: I. Kyrie: Christe eleison. Andante assai ben marcato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bef16bb12c3ec9e343e90604cdb26a2f3d83d3c6762cdb4418b002627df4095. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CH4212300044.
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
Missa solemnis in D major, Op. 123: II. Gloria: in excelsis Deo. Allegro vivace Gloria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5867b16c88066830d1de8170d60c0fe85ba2588c6909287f51c54f52807d54. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/CH4212300046.
Missa solemnis in D major, Op. 123: II. Gloria: Quoniam tu solus sanctus. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff789ff425d797d44f75298e0ac4387dab572fc0b6e1cbbe803032c4aedc90d0. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH4212300049.
Missa solemnis in D major, Op. 123: II. Gloria:In gloria Dei patris. Allegro, ma non troppo e ben marcato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad033ffdcfca6ca387e1349e712ddeb052d7373388175430c0af863b578e9636. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/CH4212300050.
Missa solemnis in D major, Op. 123: II. Gloria: Amen. Poco più allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f57e3db37dcb27068760d1104469af1bd3c37eb7f620f686bb2f75817c69644. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/CH4212300051.
Missa solemnis in D major, Op. 123: II. Gloria: Gloria in excelsis Deo. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5c53af34c51b9f06f253999c72bc9383a5fbc4b7b334776beaf72fe4a86b18. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CH4212300052.
Missa solemnis in D major, Op. 123: III. Credo: Credo in unum Deum. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d21bb1179a3e9a0e96e806d3fe6668a9091642d120c86aebb696aeab3379b6. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/CH4212300053.
Missa solemnis in D major, Op. 123: III. Credo: Et incarnatus est. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b745320c83cb926e8ef7c3107444eb68bfd2ad2f9c80ec33cf0ca6f939886c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/CH4212300054.
Missa solemnis in D major, Op. 123: III. Credo: Crucifixus etiam pro nobis. Adagio espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadbcaf8e6cd3ca17214f6f368dce59fa23d00a98498e6a878d3c7bb583c23c6. 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/CH4212300055.
Missa solemnis in D major, Op. 123: III. Credo: Credo in spiritum sanctum. Allegro ma non troppo un poco maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f0f018b445ad8c679fd72415bf32947ebf632223c0f5cbd636970807ba4c92. 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/CH4212300057.