Bow Church is the parish church of St Mary and Holy Trinity, Stratford, Bow. It is located on a central reservation site in Bow Road (part of the A11), in Bow, in the London Borough of Tower Hamlets.
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 0x3ed068c0d53cb613beba9ccd0ea856ed1a2789f7e079624d6fe960d2bdc2ce4f. 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/a4619d6e-61fa-4adc-95b2-a6e0d3c25443.json and https://artists.proofprofile.net/proofs/artist/a4619d6e-61fa-4adc-95b2-a6e0d3c25443.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 0x697d2dd3cca65a6026fa096b78b880a90b119786cab9283c3c405d10e03def66. 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/UST8K1521401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b065dded8c0b7420be01f5327b4dbd84c3b221ead9d4e320312bf239a73be87. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/UST8K1521412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff765142e130ec0f0b4bfeda81df7274fd1af052777b680d87d2a360d3353c1. 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/UST8K1537326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e146ed247df9f63c623555d3c47abe32cf1f35a4f895f9b2478eecb700f52f6. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:33:20Z), 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/UST8K1537330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3216bb7ac6527c06ec903aaaed5e7909390304d8b3edef25003326859a503f9. 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/QZAPG1804960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e77f14d0528c3c589edd9d09d409496002a046a592475f0f73e36178aa1ea5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZAPG1829769.
The Spirits in This Forest Are Older Than Your Gods
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e9061f02ec9e321799c1f877da6b9e06305e451b9457a601674998487d2483. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T13:50:33Z), 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/QZK6J2588104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c12af5ca9da265981e4071673de477ad2378676c21ae80e7957d4bd07a70a9. 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/QZNWQ2593206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2a7d4f85c19f0c94c8cd9ab1b4e371ef29719b5312829107e88087678b05f9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:23:23Z), 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/QZNWQ2593207.