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 0xeb7414920ccdd493d4e9b292966f1d1e4eadf3ae370c64c52256badc2f1b50c8. 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/df3f2c64-5fef-4bd6-9848-f427bcbc4ed5.json and https://artists.proofprofile.net/proofs/artist/df3f2c64-5fef-4bd6-9848-f427bcbc4ed5.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 0x9e265139feea35effa54c5621469fbb55ac34e608649e42d70bea6826bb34569. 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/TCAFJ2167736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c40b26f2844ab1690f95eff37b2e76c0158ff1d454db30bf728eebcb67a8be2. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:01:18Z), 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/TCAFJ2167779.
This House Is Haunted and I’m the One Haunting It (Demo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ff0a80f0bf5b3075b50f878828ca17b208d31042ac3ed60dcac730dca55666. Chain 2 (Bitcoin): anchored in block 957674 (2026-07-12T07:50:41Z), 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/TCAFO2184371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8579f32105ce7fab15a017907ab775165de663bdfc843495ef8caf4e2b64f1f7. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TCAFO2184381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3e6618acbf21a13752f8b8431811262f877d23ac2e38af1f3806a8bd3d6182. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/TCAFO2184391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6753ece5652ba376e1430b80bec035ad56e15298309e64e377216442d60d4e. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAFX2148348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369d3554ac542bf6d247bb3943470a5061c282d027b5d3f9d76e92eccd0ad1c8. 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/TCAGC2283182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce2f4d9b000f0affe06bfa49e1b2a44563e2bc8dff16416612dc411251173e6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAGD2281249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0016089a65d2c85d2873b3efadbd3e13f0417f74b937865e2edaf77684e068e4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAGE2243157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb73b6db97c537989a09b3ae8f6ae0813f368786d2e641da8e24505c4b5e3e2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWR2212529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045ebf4b6f5d229930b809d53b71443cd4aa259395c610c7e36665f38b9af466. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZNWR2212533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc7755169bbe26e765d3cec4efe6d250d129b4b985c13de771438a2d4ff9fa6. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZNWR2212537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f03a0e391b31f69e01572c9d4ec9a00d4d52eaf184f9f45031005ba9f9fece. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZFZ22313581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1833b38d828e70252dc7dd762abdc281d14f8a31abd65cd21a15b5557a88d03f. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:36:58Z), 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/QZK6N2318177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7541cdafc40174b90454146427b73dc248d642b556cc446776973b6b705d65e. 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/QZTBA2368701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c079156cc6c7b03fe881e07ee9a28cd2846024f2701859ed6adb25a8fb83787. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZWFP2343554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe575d376029fbc09ebf0d59e0aced98f102b8195c6833f719f600575b045d54f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:48:39Z), 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/QZK6M2467132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6213ae24f9a6250f6c4da26ccf0860b63518fc266dc19e5dc8777d9a6353eb. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6M2467133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829f77872b295754a0ba05768d42093fc12090aa299e996c5e518fded2339c14. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:49:58Z), 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/QZPLR2403915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305aa6f9617b66438c0251b5658f00317f774cfca80becc5f1a265f704ef98d7. Chain 2 (Bitcoin): anchored in block 957684 (2026-07-12T09:22:41Z), 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/QZPLR2403920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afd8e6b208f1cfaf49c50be4f6dc07a36d47f5276422ed4f6fe9cd2ad29b0df. 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/QZWFE2493765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7037637876daaca7caccc9afbf2b885c2f00b25289113d9100c37f740ce0bc. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:07:01Z), 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/QZZ7Q2409686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4f40477821d2b98d04079d746c1571a141cc160ad433ddfed553a86878da0e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZDA72589045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf585a4d0bcd38131c4786b7272be6ae1af868c7c0e14ffb470fe64fc2de7f3bd. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:33:36Z), 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/QZDA72589048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd37822eeffc5e0f24b60fa4839e978b3c9f399b0f28571f3c3103c6cc984958. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZES82523916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf8e55da3a6f5932da4c187a79a2f8fbcd66fffad401ef4533dfc0f158791fa. 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/QZRP42529290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c4a6437c9dbed083a194f87af146f1a894b2414b0fadcd6b4bc3413d275426. 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/QZRP42529291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563b078f6acd661b03c66b876d90dd853c1ca4c4f34193df5c7a49a7f463b582. 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/QZRP42529292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b91d20d946f2f0a9aac12aae3cee279026cb1e71f35c6282619080160df11a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZTAW2567942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4501c30b8032a6038ecf0a0ee37f84d7c9a3ebd7ad16c9144c6ea06cc03f35cc. 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/USANG2488681.