Advent is a season observed in most Christian denominations as a time of waiting and preparation for both the celebration of Jesus's birth at Christmas and Jesus's return at the Second Coming. It begi
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 0x5094f663c75e4010099cae2dba54a60ef987980a2ed022e827cd0fcc9edc27a6. 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/b042d723-bbc0-48a6-863c-b04641ff4ec8.json and https://artists.proofprofile.net/proofs/artist/b042d723-bbc0-48a6-863c-b04641ff4ec8.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 0x59c69e41aa017bccfc701b1e40f70fb8054d9b5529dce3e07ec40e8ff9b49e80. 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/QZK6L2135322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05af6c8378860496a99dcdecfcf139a4f1ee4c0c3b4cee9640d58e304379f8f. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/QZK6L2135319.
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 0x27717429c6f8c9c44076cd3f622d69f72b62b078ee3fe9f2817bea925425ce2b. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZK6L2135320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd168d0935f590403f678ef1a1bb6eed31ebb12bb11e8b60f325f2cd5e1fa58. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZK6L2135321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4c812f6e0a642c5d09ce4c3be55e4c146312ee363be8bcbce716ce88069621. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/QZK6L2135323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7369828a8a6f7535eea2ba6393c8e4f0c75a3dcd3879511492517cb2057265. 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/DEY472470717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacab6faa8b6d07b955841da35c56b6a6a1d16516fe1a9a51d10eac88dfb8977b. 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/DEY472470718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa194a7953c9b3d2b26aa37443e85ca56803e84cbed907a2a625f2e96b075aed. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU2396771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3395cd8ffe8ad38939ec50b9aaf8e26de5cfae27a4e4217de83fa1e2030fab3. 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/DEY472376908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4923c79366161443aef7a206554d104f7757df43a9c9341ece0d87028e1bab7d. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/DEY472376907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4ad39864c7d81525d9ce0b3163d0f388b298917df20c14872a7439a74739963. 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/GBKQU2367819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5975c4f87741c0acb7797d612f8346d53c8558ac39431e0e4b89fa630e16b2. 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/GBLV62206124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6039eb71e4b6795ef0f8ac2332bf002df6826cf34246b997acb2ace76a21b9. 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/QZNWZ2297243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7bfa63d70b0a61fa16d3824ac2e2504ffea00be19faecf71f6576a944b05c7. 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/QZDA42297413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b65de4a331d368d9cefcd7413e6b77bccff95e20f45dbf878e2d6b26203e902. 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/QZDA62160697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50a62d835d86a1732b3fea1e00a121bca3ac78d596d17f6ac27c23dcda767c7. 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/GBKQU2080853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c7d0372d0f6196cb3df32304f7a1a908b92c2892a4defe9d98eb7b4a648b7a. 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/AUXN22036602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dded2898a5954932e3f05742c4fdf78a9ef7c279a1538a6221b89a479e55bc. 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/GBLV61906130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52638bc81c3498fcbb209fbf7ab5b12723c7550d7996b28373e47e27d81743fd. 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/QZHNA1906324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f9495644082ec92a98443b05d11466c5ea86763366815b87ffa832c9828c3f. 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/QZHNA1906326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba77d6d57fd5e2eb7fc604baf97c313ec53f990323e7201bfbfcdbea835b6c67. 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/QZHNA1906327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95bfbb68528867eac606013b0fab3d8ef18793c18c7db83a64c9a9ffb5c1d918. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZHNA1906325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81bbf927370f3ad4e55d8cd93caf6ff14973da85aa477f6b16d2559e21e7d9d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZHNA1906328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33a8985e27935adbb9d67bcdd735319df274b37732d0c03bbe722339f948552. 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/AUXN21918261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4167e11142c08cc271f567087be94e9bc8fd463bceb3145fb9316d0473c96573. 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/QZK6K2454171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1b86c9d67cbeeb9be013be2595b044190a35d4364da1dcbee69e58aa21bbbf. 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/QZK6K2423315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78760a615b2c504e1b3a2837907a18f14e49283591b98d9e09596beebda1d7f. 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/QZES51862267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dc7e142c494e8baf2d27af97b35d6ed23c47bc4704b92df80d3a3633df5869. 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/QZES51862268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea0d685af264d24111c9d0866e81f8b9e3116d9c991ab619f482d1e4761df03. 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/QZES51862269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca5214c962afdff996b7f3410bd69879cd7897c8db883051ed28d2148ed7eca. 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/GBKQU1861191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aea11e7a88704d9461a77fc6439831d502b943b298ce4ecef8c799d664ca908. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBKQU1861192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740331980b8271e1b64b25eb5034441e67e9b6a1d8365016a990a29bdbfaabaa. 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/QZB4J1882494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6411ac8521c1205cc0331469e37933fb3e67afdf54ba78270a2abe44808b6480. 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/GBKQU2036780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d8d8ce41917a2f31345f41128e42c1528bd130f76b944515ecd9784ef27be2. 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/GBKQU1963935.