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 0xd5eb6e863a6d7f9b3d666438ce92e7071a95eb56c13679979a34513e1e8a9d15. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d74f1921-1e2b-47da-a34d-baeed8e620e9.json and https://artists.proofprofile.net/proofs/artist/d74f1921-1e2b-47da-a34d-baeed8e620e9.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 0xae42e77faab625a601ceac18cd895dfe4088de33ae6d7f8c9001a81eeff8c1f8. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TR0061200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5dfca05258caef9d978e66bf0fc836cca284e18a618ae7a455b42f9e748dad. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TR0061200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623fa3e6fe2412ee39f8cba5e19c46bc5d58190c27f4be3208c987598d523383. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TR0061200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36ead134ddd582bf253c8d58a06c6f9d5c4da78247c27d6b4d8b06b0436bc9e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TR0061200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1ad678f12acdef30cfd71162aa1497a6f134f461bf0fd6b2429d5c21396ea2. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TR0061200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899229eb42eee31d9df0caf381e88dc6e3b36cc5e0cdd1c957a84f3bdc4a6c99. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/TR0061200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4bd96f5cb53b9d777d10dbf4a36b006e23f9e0fa69392e0fb14eddbdde42db. 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/TR0061200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6115c2026812fbff8137494308d4c778b12cf9d251ff6a124bed907297541a78. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T04:53:47Z), 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/TR0061200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fedae50c10c0141cd9495490f798aac681973898965f941d248365bff1fdfb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TR0061400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f9bdeed99f4708d6a92b2be2f7ff1e1a2715b05287df2b67ea0b08d75df85b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TRAKF1610699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c85839f62e81c5c8438d702a0d3551fe7374b202273cf241a73f3d43fa7c1c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TR7802000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c85839f62e81c5c8438d702a0d3551fe7374b202273cf241a73f3d43fa7c1c3. 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/TR7802000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd203064a9be453c449a31a5079564d073f859c35978560ae2c3f432b8f2ffe. 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/DGA0P2467172.
Karşıya Çifte Çamlar, Kızılcıklar Oldu Mu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e63fcfff74fb54d16cd3d59b597bb0c0e25bc761c11029a73b99dd355b8acf. 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/QT3TB2407519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd8e608df3906bb1e734980c75c85314fdf3778462c72c51fe2a5aee37ea2f0. 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/TRBBV2400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b16ead23a13b245f89167d6cd31c342a4fe70dc341a05ce10b988623230499. 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/TR4152500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52c57397cf4e2ca67e95757a5caedad97195abedbbd29477ce6d0819770d845a. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/TR0391600126.
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