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 0xf15ad32f36849185c5d09be05def08efd15ee769f7883c7f92722c7b8b50dfe6. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a644621-aebd-4bdb-baf7-435e8561cc5d.json and https://artists.proofprofile.net/proofs/artist/3a644621-aebd-4bdb-baf7-435e8561cc5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pater Cælestis - Fadern i himlen / Terra Mater - Moder Jord / Vox Humana - Människans stämma
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 0xb1a12cc07379f57cb3f67d58dfab34883fc0e4fe526fe121d326250b13c30315. 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/SE2FO1000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3805f9954c5e137c0453794a8dad2e650ae43a9ed5957c691fe0caee773ab. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE2FO1000118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe6bfe4c580ca3528a2455a117e9574dbd595f44f483de1b861b9606eb09dab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE2FO1000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598d499df6ddf1003bf1604f961686a56e67348359cc180d97bcb5f1f4eec1de. 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/SE2FO1000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d23c343cc0587bf65438c88c14314c023f928e050741dbe2a52df4817953e1b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/SE2FO1000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd298f716ae55128b9d2a92a64c567d564daf8b11c9c608ab68f8b92c15a49cfd. 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/SE2FO1000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38a21db07e6b00ee09068c4cd1ce06c913f01dd0721fc76d8f8b015a02bb804. 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/SEVPA5003601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a5b7d453b704a65029f5ba8640ecda0aa3dae4b6fd5c3ffebdc7a4f17c4bf3. 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/SEVPA5003602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98adb605c20337a9e1fefe3fb13162cd23ac8a49183f41088a62858fbdd385e3. 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/SEVPA5003603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07156d3201ff8411cd54302958ba0dc86b1455e3e8ebf42a6383928881713f63. 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/SEVPA5003604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a224c52ffbb64c62bcf04c1614be55b61da1d4252ce255ef43c9912da670e6. 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/SEVPA5003605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3218ab55315060423f2303c219fd937299d9e1b336edf9f095bef9b881d66. 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/SEVPA5003606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc522f528fd1e2630cac1322dccd25823a0a66c5d9fbea0bc64d7a54a204aecd6. 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/SEVPA5003607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfeba3e9e5221ef61874702d1199662e133e8eca3f89db3dfbfd38b733ce21bf. 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/SEVPA5003608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148a89477646894b9bc13806b8f532e3bd1006f20519e309c5bc982c260ef7de. 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/SEVPA5003609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cf8c7503dd991713ef0466588e1cf11fe9d6e65048244683eea7c8c93c17e4. 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/SEPVA0100210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334bbcb70a5fd7cf49f53d58a61a57f1061911a7ae8ab6c57cbf4b70db720d50. 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/SEVPA5003611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b045eb709054c3825edbd7b5a4fa38a424bf242d96133640eb9334d72b25e2. 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/SEVPA5003612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52aa654efc3cdd2aff2e94337cafad12cf3ec15489bfe328190de36159d97e1c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SEVPA5003613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b495f32acdf930c4dac4420a2a1974e85814e6b83200e5aea94815327dbf502. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEVPA5003614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6057bb627688f5cabc5179f70864020219ec2b8b59cbf0beebd8575cd682b8d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SEVPA5003615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd6e37ab1f8719463af4a648f90089412ad13c08dc35380263099a02b1e1d2b. 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/SEVPA5003616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9652abdac2985e490798967e40fa15755edd66ffc9789e71c7c73f08a919148b. 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/SE3QR2000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44450afa7af25fcd4534966313243322e3e63c5618ed6711c7734f7faef15c9. 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/SE3QR2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236ebb127efdc21c2d03a4b1f25fa9105da1214787d7a50ef3800ff3f4e47c39. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE3QR1700809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6515ced86163946e55475397cadd4c4bd5b16bf24d54d02900d09e3309fdcfcd. 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/QM4TX1746009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c16a8f2d7eef5047f08d11e73d2c9dcf50263791417310eae6acd875bbfc971. 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/QM4TX1746011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a85209797b8f2a2d1ff684e0b9455ef0a9095964e03b6b1ecc33bf44d5238fd. 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/QM4TX1746013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d2578a3507d1e28a398661445546200907140cd5136345fdc3935f5f3ef6f7. 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/QM4TX1746014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4e863aee81184a4559c7895bf14f4e335a92ef5f3a7253bf54cb78fc30d0d38. 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/QM4TX1746015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356b82d3d3c53395726ba2a79b55e8ac328c645c7673e52f32c6da7a059d8bc9. 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/QM4TX1746016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a97fa250365b4b76a99ef04975a4906956f2ba78ba41aed6da6677822af200. 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/QM4TX1746017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde1058df68d9e28fc090cb8dfec1d8558672c707c93f2915c3df13dca1d564d2. 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/QM4TX1746020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53cd568ed52eed99e06f2427b4abd19673c8dc79ee88cf8c54e368d867eca43. 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/QM4TX1746024.