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 0x99a54c5b6fb36b69406677f298a613596db14581fd5ab80945345027c730888a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1a01bf8-432e-487f-a0a6-51a5fcd14c97.json and https://artists.proofprofile.net/proofs/artist/a1a01bf8-432e-487f-a0a6-51a5fcd14c97.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 0xbee053e12151cb45547d5294f9a0d69346a176c110e547e61f2a7dc57a1d80d8. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TR0061300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbbc4fdce7146349af6150ec86d900cece63a4198cbe599b24a1084d7c55b3b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR0061300476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2635292b6cf2bac04d726eccdc6b8c274a9f5590cf756419507ef0b0c9fe143f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TR0061300477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27565d32574f6ec05ca276d287433fd9743ceb8248a25265b5c244f92f114bc2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TR0061300482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474397bec09c9ad5a87974d99c2b524b76383fe5c5f5b8c8a3de025d6d5f34c1. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TRA161600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa831ef02a81439897c93d045201477b78c2539c169411d46f5965df25cba6b27. 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/TRA161600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd3ead0351095f06df3d5dadaf07ef406e8ebc34ee9291f889905e3aad9b681. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TRA161600025.
Bir Gönül Sayfası (Ahmet Selçuk İlkan Unutulmayan Şarkılar, Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a71e856e821c6756ae92334a3a3cd897562b8f25097a6346deab240de8b9980. 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/TRA161800511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2fcb69ba7afd60d716b5eff1f87f91eba53e2ed8a99fca8b5307f728fa64ab. 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/TRA161800512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95fb6d3e694f56887437079f8c876bbcac1c2dc3e5a782da5ca24ed4f8956463. 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/TRA161800513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd061987ebe5bf5b563bcd8d8b8551e038dda9003056e5953e0b9ec477a9e8f94. 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/TRA161800514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2282b8034109092eb642144670e4ddcc8b9a44365033ac7e79e433549b391a. 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/TRA161800516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd041d7094d4320c07be0201dd83012a9ba086931bb7dd81525a2a3e23ce7235. 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/TRA161800517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fd999c7d132521043745233e5ff712292cb14d4d1c0a73b8ca10919c2157ec7. 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/TRA161800518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d41dc1ac6358e8a76e35b7370c9da95d7e65ad2d28d3273c5b3a582a414e3f. 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/TRA161800519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17479436e4dea204c8102f3c816f6eb8d215bdf7b83d6cdcddd994532869d701. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TRA161800515.
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 0x8f54740c6c108712c643d6394096667c03916bd5b77a02a03e196596a02460fa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/TRBZR2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc976cc3e819bff0d1236c45df1785f37a908ce9370ba3e6e87811dc06fb6109. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TRBZR2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b64fe8619316c957cff2ddd99bed03608dae440f3724989c2d511eb50f4e35a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TRBZR2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af2e97d363e32b1738a21632d991ae0f0398a35fd81819b76a0b14b9f3215b8. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/TRBZR2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b28e839a41d0e4e65299a1ce505436a4e20e6676a3bd0ac45bb0fb53d902ad. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TRBZR2150086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831a2230628b06ca6ea6624bc257f8c2e27a83871561099b6991614289ac2def. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TRBZR2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4fdd1c7ecd3f1a4863059688cc5256053612248158db4320529846ac5c35dd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TRBZR2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5a530c5e0d5ecb46b2b5ecdfb8fc547cbdc007f01bee96c5aaf65304fba04b. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/TRBZR2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729ae85fe3c0069e4b08140db754e64ac5a39be71c3790f9772987e67dc981ac. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TR6232300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cd9066fb413f4f7764209fbe9aefc8f9cb19c0b79429bde8707912b9f8878c. 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/TRBZR2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bb330f5554bf9a19ff50c04e65219aee663118e6bdbbface27466f7e15abf8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TRBZR2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79e4ad824f9f443279d62cf2c6d030248f459467f70146ff04171b53b895c83. 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/TRBZR2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae92374e1edb4a01c6af0c37954a9f8c8a1d01df36d9ab8a94e697b9f420aade. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TRBZR2300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17469ff0c1b3e0ae82fcd9c8dc62388947e93e7f87bf8baad7066c5d47917d3c. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/TRBZR2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7801d239874baad2b4f892581706fa99d6f99eed6c57cb88d4fece1390445887. 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/TR0062000135.
Ahmet Selçuk İlkan Unutulmayan Şarkılar, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956cf1b0e2c01929588b883bc4cdeb83f5f7dc9d45e233f1c709287ced95d3b0. 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/TR0391800032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf63bb388f9dde6cde4b948c0b942b1bcc1605768e294e934278d7070c0ae33. 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/TRBPD2000002.
Agah Makamı (Şahsiyet Orijinal Dizi Müzikleri) (feat. Rubato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c8faad23876aa9e0e686c64ea350685d7e7876e1c425284068d78fc190c5b3. 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/TRAHJ1800004.
Kimler Geldi Kimler Geçti, Vol. 2 (Fikret Şeneş Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0a89b5d91be19bf18eadc3e0ee79060fde42c3988d42211513bfef9b1c4e94. 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/TRAZK1900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac76cf4d2363094e01752b08c379029d2fc1e92d9cd1519047e11059056eeb87. 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/TR0391700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bb22c5356d70c0c24b91e7e762f0694b812f5f8db15273ceb4737111668bb. 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/TR7802000213.