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 0x3357bc6dc23628e3006177835088e846ca294a8db6e432cfca39a314af718e2b. 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/601b2a6d-db02-4a4d-8f5e-a67843d842ad.json and https://artists.proofprofile.net/proofs/artist/601b2a6d-db02-4a4d-8f5e-a67843d842ad.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 0xca4adc6e9dcd415e49848361f70e61839133e18547d019b047b91dc6ca547b5f. 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/QMPKX1788959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d1f7388bb940d5fd87929acb7110cc2e13e3c336e08c6dbcffe59a3df01d23. 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/QMPKX1788960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d7cc2a6dc2f5ff8e281388b74189e433704f903f7b727f6632be143f905fce. 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/QMPKX1788961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87161558618d74d65e612fb4a643c6ede57232d02831e102004e30e541a01cd1. 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/QMPKX1788962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954a4b080b61ed7393cbc8d69660dbc9193782b73f83feab69f95edbe5ff7793. 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/QMPKX1788963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40caa45ad505a524619bfeaa209e88703e7d369ef50096a39bb8d335ec3c77dc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QMPKX1788964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78575005bca67480e2dc9c4ad0316fc7fad5f120fbfec355872811cc8a269222. 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/QMPKX1788965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ceb93ad98123b5619db382b6adb8adcf7c9a1780bcb72c0991210bc942eac6. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QMPKX1788966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a253a872322580f5a97262cf1a581035d94c07f188391429e2b721890c6498. 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/QMPKX1788967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c59c09b13733e1a3fd41017f3f8a45235da81f1390ae076077cd724989654db. 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/UST8K1701387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20324f677ee8dd3b8c7d96774033d233176f62ff6fd9d50c2cda7fa56ac4c9f. 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/UST8K1701389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1682d44e104c888f9d0b25528b769853c47e15f6954c6d38037292ee573b4d. 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/UST8K1701390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc224ef24ba45b850d7ddcfa69699902509dce499ed4c148ac7f950bf049e8e58. 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/UST8K1701392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb76c2ba4bd0032d9fedfd6c79dad0880a08871ba9f962bf589cb0d6b1404ae4. 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/UST8K1701393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd8b62ddb69f8a5bf0e18408d2115af9fee5815cf2c08cf413113974fad88b1. 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/UST8K1701394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671adb7f2cff8dadac44d9ab58037193267d596c2257cfe1fd2d1cc88368374f. 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/TRAKF1611299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaa8733974883506a2405b320c58bd8a8641ebe09af62143ad0781b2f4475dd. 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/TRAKF1611306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84bfe24167ee1a4076f35c81126bb43dc5043a37ca843c6e656e8d01228eb1ae. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:14:31Z), 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/TRAKF1611307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63be2e0b210745fdfb78a3f2992eb0e8a4ccb4bf6c3223ae9661130a1819489f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TRAKY1600039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2895c2bc79d2b65f5956d7bc97cc08a287614b2fb4367c5080ef2f94a0534706. 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/TRAKY1600041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1e58db6f585aaf0e13c5620791ae1a26856b9a4854b408a558af912cc15c9a. 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/TRAKY1600042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb7c9ecbed2c3f4ba952dd7d61348adda1ed310e9230859b00576ed037307c2. 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/TRAKY1600043.
Bunu Sen Seçtin (Groovypedia Studio Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1520b37136917039c91eccfd839553eb93ad19da6f23e3a2ecd1a5564c460454. 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/EEHU32000331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a581f330355613db5fd6a202432cb5264e58b979c153afded1bfb1695413abd. 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/GBMJG2102227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94912a0e8a2bdf8db70fc92f09d7a9795dbd4dc38020aa9048909a7d59bf8b0b. 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/GBMJG2102228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f05da2a659309457ec36d49ef8ce4b3e571fd01f5ad8c2ebdc64dbe9747fa6. 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/GBMJG2102229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3f47c11e87b063063be8e92fd63c4c19abb075e34babbf95e55a60eddbb25c. 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/GBMJG2102230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3713f616da29ef895f754467b53dc3ee0c5250a3ebf5f4afc24b29fd59aac1. 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/GBMJG2102231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682ce55ed98fd02920d3cb552be67f6f6ae7adb8bd46866df7068c9a2e2b5cf7. 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/GBMJG2102232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6fad6383a68618fdc70bc92c5ec63285fc00282fb0aec8da6a9d87e5da84e8e. 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/GBMJG2109201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7f26d29725592cabf7d4a1681a545efd4079dc009fd9188ebdf0a8e58199b1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZDA81823311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbfe49b33644079b715093e17bfaa8785a8e3fd2cf24b7c705a87d334d62add. 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/TR0062300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d573bc51de06d6d6e78086af5f9399ad5d3ae37cf4f081554eabfab6f1c0d30. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNJZ2416028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4588e239d9328e0e44c4a56f134abfbd8e61cca76e2d05449da01858d6d622f6. 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/QZMZ92570043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5330e537bc8f593ac9caf574a1f32799188df9a33f1494c1488943eabc5f70. 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/TR2181900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c93185e8dccd1b34ba9043d0f4fcec8fa4b69cdba6469b2949b219d589726c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR2181900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cfae2df0a02bc7d43a38cd76ca7be5ee657c0b8c27c57e0bf47916c72130b5. 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/EEHU32000386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeda84afbe9c1a49bb64710070b26fa053b7bc6a3e896db7dd4230330e98dcfbc. 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/EEHU32000369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ed3d330f3d98a50a5a1fb08357f0ca8a2b40b607270d109c9ed41739cec07. 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/QZ5AB1978218.