Matthew Parker (6 August 1504 – 17 May 1575) was an English bishop. He was the Archbishop of Canterbury in the Church of England from 1559 to his death. He was also an influential theologian and argua
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 0x278ffa9ead86784907776caf6028dfc9d6e485cb31b73da05fe2732b3d941bd0. 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/2d3fc28f-9a58-42e3-be08-304c1a92309b.json and https://artists.proofprofile.net/proofs/artist/2d3fc28f-9a58-42e3-be08-304c1a92309b.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 0x39d6836b768814fe0c0cb465ea778a1ab368e1b735f693614e70d1cb04daefd1. 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/QZK6L2039797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9324cc3c03f273556fe68c4fc407a5846baf782a89089818ec4b40a713d2b5b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM5LC2200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df666f1242725684e6219d769c7eea789c0531163ff40d85eb2275b6ffb0413. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QM5LC2200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5de1afe2013bbb473bfe73bf5ec9fccd29af4533e80cb3ca2407a2bc5b6b51. 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/QM5LC2200156.
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
thanks (from Young Pop Renegades Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba01aefdf4e6df7b5b3a0bc76da8d2eda9ea152678eb22f9322f04efe1cff18b. 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/GX8LD2356715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6671d0d03d7efaac1a39f0cbb72a58b600de1d7864dc491c8b824ab6153e5345. 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/BX0BA2100028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bbcac8dc50c177410018d7136f0a68e10901a337d7f28287b4756838943254. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMQ3X2301689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6bb55740a92fc89db245ebf15df3ed9d25333877b35410f4659b36f666dabc. 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/QZK6N2253272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12bff61e663ee9fa29569287f8ddd552709946f0b8b830683cf93bbf7cea676. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFZ32265245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90eab087212c6f244e74e7ce2fa423a4f872f91d578713520bef40c53b92096. 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/QZFZ42104743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1b6e252367ad9011a50296ea944a364501dd4250ee50232dab2413eb838af9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMQ3X1800988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dee4351c885326d189e4eed4ed0a854e6bc2a26e462288796f4b0b63f89122. 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/QMQ3X1800989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e44824c89051e9aa93bccd8ba4da06569d22518d75c8c071cc4eccf2009075. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMQ3X1800990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e9fb84c0e2e001a4324d2b192fcdef7a2efdef3722b393f0500a3a0f1cdb26. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMQ3X1800991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f2dff2f7e854c5c3da0e673aa6fe6b00ccbe7484bc2aebbde0f26c5e203a02. 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/QMQ3X1800992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9baef39de5ec55b017d6bacca2182fb807b9e2afa43d033ad271d478c292eed2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMQ3X1800994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb87e8e64d482a587b97cae3fdb5c2da8fa68a8ce4db12337493031a37154b699. 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/QMQ3X1800995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399ca5ad0563fe182b84ec7a257d1889028802ca5e819925a74972a39d9ca77a. 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/QMQ3X1800996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce574573d3d7e3377ad7828903e645a31a763856fe5e6701dbebdf507fcaec7. 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/QMQ3X1800997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3f91ba5746183a05ddea28d9a891d9ac875b817e8b3248b046427d7d33654b. 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/QMQ3X1800998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609ff1fb6d72bfef7446316f6f88363e78fc2479d8c4e3faf7b3617fec131d06. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QMQ3X1800993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68cad53d40d2c9bb246147dae810db7f6fecfec7fb1ccb2255f517aaffa4b4c. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/QMQ3X1800987.