thumb|The Angelus (1857–1859) by Jean-François Millet The Angelus (; Latin for "angel") is a Catholic devotion commemorating the Incarnation of Christ. As with many Catholic prayers, the name Angelus
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 0x8dc89f07022bbdab7b7dbb0e467a59a5252b011128fe4e758e2e22cd53772892. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3222360-2b45-41a4-9707-df4ee9ecefa0.json and https://artists.proofprofile.net/proofs/artist/c3222360-2b45-41a4-9707-df4ee9ecefa0.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 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 0x990a7e5d3f3fadf8a7b3dd8595aa71e014196b916a064ad79a5a179f3393f388. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/CA5KR0006022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd22e57c8c370a3d6de4ec4f2ec3ef26f6620b61337cb7180d0939ba64ce5bd61. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T05:30:12Z), 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/NLD682103810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22dae62f2737fcb35058d2e8854e8caef5a4e48123fe5541453153f9311e3c73. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/NLD682200934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e3d07247b1e6d4a30cbf66c9684bbda3b2be58c90807cdaf92fed58f7f0b57. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/NLD682200935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb15d63f2c5adad2aa136c452d7132973edf50d74879e7f5234163370448bf8. 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/GBKQU2302418.
Noise for Different People (Enharmor Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb541bd7fbf4fdb84d941b7c5791c7016ec1579a61b604a68720d54873afe14c8. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/GB8KE2309427.
Parley Pt 2. (The Bassline Will Bring Me Home)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dbf7f50b57b5e40cd9f61c866dd9a430f5805868f65e79bd1e08557b8990d8. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/CA5KR2497157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3125b6f79da60cd2be869e9e4df833cfb68f0e049e824494c0b6aea1f9cf331f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/NLD682500750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e933964df39e2679b731cf8e45744ae20f632815b073703e581b839321ef3. 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/GBKQU2525613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ed3415e1c77175cbeafe88a714a8a45e57ad9b953a5246efa05882f23ee775. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/UKU932503221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa37e094e738f053fa3c98577d8f29f0cae98399f4819347ff5808855f4ace8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLD682501747.
FSOE 841 - Future Sound Of Egypt Episode 841
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a375d9e2a716e1c8396614b59703722a16d497482aea43972423b2d5141cff. 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/UKRMQ2400074.
FSOE 806 - Future Sound Of Egypt Episode 806
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe001d5cb0f2692a52a73ffefa4dffd2229ef4fc01a9261db13dd33b40a2a49d4. 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/UKRMQ2300579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb9590c2b7cdb1505a57dbd1eb3dfa887d0e9edc46bb8340883e17b5725a3c4. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/NLD682200316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49a16a643da568587781023eec9366dbbd8df7dce29b9f6399b88f29a8ae4fb. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/NLD682304094.