MRR may stand for: Finance Monthly recurring revenue, a returning monthly income stream Market reference rate, e.g. Libor Literature and humanities Marcel Reich-Ranicki (1920–2013), German literar
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 0x9750742bd6126f543c3de659756e4e4f66491ec2302be04a9edd82eedbebc5d8. 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/5157e39e-780d-4b45-ae9e-a8a9d65e7b82.json and https://artists.proofprofile.net/proofs/artist/5157e39e-780d-4b45-ae9e-a8a9d65e7b82.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 0xe22486adc1399e1cfd3483cbcd61f40594bada3bac2b34245db6909b8bc692eb. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZTAW2477823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8fe85cf519fae54c20b8a78580d576572b896bf52528c50f351ea3a5617378. 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/DGA0H2413756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51a2e9fd1237163b5607bbd6ea0301fed43d52340a7dc49902ff515eb804ef. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:41Z), 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/DGA0H2413757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210a38a068265b1c1be6251fc409304e6d848c0592c725c9e6b9f6a3673efeb1. 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/DGA0L2493718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31439d3ca70280605d3c74402bdf14a3fc9c10bd2b86e4fac9a92296c7ccd5d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GXD7G2207121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65735d52361a8beee72f3fa8103c7b4f15710441311e1b164c7dbe660e7a138. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GXD7G2211963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc8c7b951e8429d0cb2db967ea65bc8b4d8878d08441b00be0fc1e01faa090f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:26:46Z), 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/QM4TX2585754.
MONTAGEM MELODIA ETERNA - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d95959c11365ddccecd20dfeab3da1eab8c4705a5634ce69399b5464c36e20. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:58:00Z), 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/QM4TX2585759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed45962f2ae67196180545c76e43410dd02f008d1998a748c2a58279953b75a4. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM6MZ2507405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c01a84421039eba344866f4925a2a6c3912d8c9fd7cdae7f1df8c866042be73. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QM6P42513320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e6f1f3779286494cff062ce4a212f1925fa73229f6324ca5da51164f0b55a1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GXD7G2591621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf781940a11354a9246d9641336c783d004a8d52e927bf3a9a02c8fba8718aa49. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/GXD7G2599656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a4aec144291f77efd4a7e6a0fa9f0812b1f91426eddfbb99b03a108cea028e4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GXD7G2536217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107ac0554e06a4fd78374599fd80f10f555e6ba64825db2734e1042bbab7657c. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/GXBAV2166536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f8745e84b5626137e88105a0b1631e0ebc0770b7d9ec9cdea51683263aa7cd. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/GXBAV2133368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3dc467a6154fffbacfcb2f1afe1bef974b83a2800c6dd032e4e1afe3c653f9. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/GXBAV2164016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe05e77b431de3bb267d4d164641653296437d4da0ae17d3f208c7405714fd0a7. 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/SGB502537395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924c120979783911a497eb4e7d449d6774d663ec1cb8f77cbacfae39271a3485. 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/SGB502536886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e17cf9ad738d8ceb5ff26c64d81294236aafd982d1af6b23f7b07a3936ecd1c. 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/SGB502569825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ac2a1407b8d074b9aae6b94d45b57de11daf5af0e8a68be063feb9f4ebe242. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/SGB502553709.
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 0x473e6af6fc4c57974bf4682954d91ba76f611a58f69c5a8b0f4f3c68a23eb1cd. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/SGB502531216.